Short Answer

Donald Trump is not expected to say "America First" during Night 1 of the RNC Midterm Convention; the market prices this outcome at 1.0%.

1. Market Behavior & Drivers

The market's decisive move was an 86.0 percentage point collapse on September 10. This was a direct reaction to Donald Trump's keynote address at the RNC Midterm Convention the night before. Reports summarizing the one-hour and 44-minute speech confirmed that he did not use the phrase "America First," causing the market to resolve to near-zero probability.
Prior to the speech, the market had priced in a high likelihood of the mention. A 68.0 percentage point spike on September 8 coincided with significant social media discussion linking the "America First" slogan to Trump's trade policies. Expectations firmed on September 9, with the price jumping another 28.0 points as the convention got underway. The event was explicitly themed around the "America First" agenda and billed as a "Show of Force," which traders interpreted as a strong signal Trump would use the phrase in his address.
  • America First likely relates to Trump's shift towards future policy and national security.
  • Israel / Israeli mentions may align with discussion of the ongoing war in Iran.
  • The address mobilized midterm voters, urging them to 'pretend I am on the ballot.'

Current Context

President Trump delivered a keynote address at the Republican Midterm Convention. On September 9, 2026, during the first night of the RNC Midterm Convention in Dallas, President Donald Trump delivered a keynote address lasting one hour and 44 minutes [1][2]. He urged supporters to act as if he were on the ballot and emphasized the need to "finish the job" to secure the next two years of GOP control [1][2]. Political analysts described the address as a standard "rally-style" speech, focused on unifying the party and encouraging voter turnout for the upcoming November 3, 2026, midterm elections [2].
Trump's speech focused on policy themes and partisan framing. In his remarks, Trump discussed border security, tax cuts, and opposition to what he described as a "sick cloud" of "communism" [3]. He defended the war in Iran and attempted to frame the midterm elections as a choice between Republican leadership and "radical left-wing Democrats" [3]. The President also referenced Babe Ruth, mentioned the Dallas Mavericks, and commented on his own character, discussing various Senate candidates and their opponents [2].
The unconventional convention aimed to mobilize the party base. Dubbed "Trump-a-Palooza," the event featured over 100 speakers, including congressional candidates, cabinet officials, and party leaders, intended to boost party momentum for the midterm elections [4][5][6]. While considered unconventional, the convention served as a platform for fundraising and mobilization, with Trump holding a high-dollar roundtable with donors and addressing the crowd at the American Airlines Center in Dallas [6][7].
Sources (7)
  1. 1Trump tells RNC midterm convention he must 'finish the job' -- lays out plan for next two years of GOP controlnypost.com
  2. 2Republican Midterm Convention Day 1 Wrap-Up | Video | C-SPAN.orgc-span.org
  3. 3GOP midterm convention: Trump defends Iran war, slams Democrats...apnews.com
  4. 4Here's who's speaking at the GOP midterm convention in Dallascnbc.com
  5. 5Live updates: Trump closes out Day 1 of GOP convention in Dallas...thehill.com
  6. 6GOP launches midterm 'Trumpapalooza' convention in Dallasfoxnews.com
  7. 7Trump and GOP hosting first midterm convention, but notable Republicans plan to skip - ABC Newsabcnews.com

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

📉 September 10, 2026: 86.0pp drop

Price decreased from 87.0% to 1.0%

Outcome: America First

What happened: The primary driver of the 86.0 percentage point drop for the "America First" outcome was President Trump's Night 1 address at the RNC Midterm Convention on September 9, 2026 [1][2]. Reports summarizing his speech content from that evening did not mention the phrase "America First," focusing instead on objectives like "finish the job," ending cash bail, and sealing the border [1]. This suggests the market price movement on September 10, 2026, occurred as the outcome of Trump not saying the predicted phrase became clear [prompt][1]. Social media was irrelevant, as no evidence of a social media catalyst related to this specific event or price drop was found in the provided sources [3].

📈 September 09, 2026: 28.0pp spike

Price increased from 55.0% to 83.0%

Outcome: America First

What happened: The primary driver of the 28.0 percentage point spike was the Republican Midterm Convention on September 9, 2026, which was explicitly themed around the "America First" agenda [4]. President Trump, as the keynote speaker, turned the event into an "America First Show of Force" [5]. This prominent thematic declaration by Trump and other party leaders during the convention itself directly increased the likelihood of him mentioning "America First." Social media activity was not identified as a primary driver based on the available information.

📈 September 08, 2026: 68.0pp spike

Price increased from 7.0% to 75.0%

Outcome: America First

What happened: The primary driver of the market spike was significant social media activity involving the "America First" slogan on September 8, 2026 [6][7]. This activity, which coincided with the market movement, was specifically related to discussions surrounding former President Trump's trade dispute and tariffs against Canada, with Trump himself reportedly engaging via social media posts [6]. Given that Trump's rhetoric frequently employs the "America First" platform, this widespread social media discussion likely heightened expectations that he would use the phrase during his RNC Midterm Convention speech on Night 1, which took place the following day [6][7][8][9][10]. Therefore, social media was a primary driver of the price movement.
Sources (10)
  1. 1Trump tells RNC midterm convention he must 'finish the job' -- lays out plan for next two years of GOP controlnypost.com
  2. 2Republican Midterm Convention, Day 1 | Video | C-SPAN.orgc-span.org
  3. 3Gradually, then Suddenly: The Definitive Account of the Biden Dropout Marketnews.polymarket.com
  4. 4Scalise Rallies Republicans to Defend Trump in Midtermsdailysignal.com
  5. 5President Trump Turns First-Ever GOP Midterm Convention Into America First Show of Force | WLT Reportwltreport.com
  6. 6Trump Fires Back at Canada's Carney With Social Media Posts as Retaliatory Tariffs Set to Take Effect - FOU NEWSfouglobal.com
  7. 7Trump Wants to Exhaust Us. He’s Failing.thebulwark.com
  8. 8Republican Midterm Convention, Day 1 | Video | C-SPAN.orgc-span.org
  9. 9https://polymarket.com/event/what-will-trump-say-this-week-august-24-august-30polymarket.com
  10. 10Mike Johnson Praises Trump with New Award: ‘The First Ever Recipient of the America First Award’:: Grabien Newsnews.grabien.com

4. Market Data

Contract Snapshot

This Kalshi market resolves "YES" if Donald Trump explicitly says a specified phrase (e.g., "America First," "Israel / Israeli," or "Kamala") during Night 1 of the 2026 RNC Midterm Convention, and "NO" if he does not. The resolution will be based on whether the phrase is uttered during the event, likely verifiable from the official convention broadcast. The maximum payout date for this market is September 24, 2026.

Market Discussion

During his keynote address at the Republican National Committee (RNC) Midterm Convention on September 9, 2026, Donald Trump urged voters to 'pretend that I'm on the ballot' and promised a $5,000 dividend to every adult US citizen if Republicans retain control of the House and Senate [1][2][3][4][5]. Trump also defended his administration's economic record, characterized Democrats as 'radical communists,' and defended the ongoing war in Iran [2][3].

Sources (5)
  1. 1Trump tries to energize his base by placing himself front and center: ‘I’m on the ballot’:nbcnews.com
  2. 2Trump's Republican convention keynote speech features stunning cash vow | Fox Newsfoxnews.com
  3. 3US citizens will receive $5,000 if Republicans win midterms, Trump claims in lengthy convention speech | US midterm elections 2026 | The Guardiantheguardian.com
  4. 4Republican National Committee Midterm Convention Day 1 | Video | C-SPAN.orgc-span.org
  5. 5Republican Midterm Convention, Day 1 | Video | C-SPAN.orgc-span.org

5. What key political events or polling shifts leading up to September 2026 could influence the thematic focus of Donald Trump's RNC speech?

RNC Midterm Convention StartSeptember 9, 2026 [1][2][3][4]
Trump's Stance on Iran Warin no hurry to end the war [5]
Trump's Description of Irana failed nation with leaders largely dead following strikes [6]
Donald Trump used his RNC speech to address the ongoing war in Iran. He defended his administration's decision to attack Iran and addressed concerns regarding the conflict and its economic repercussions [4][2]. Trump specifically deflected criticism by highlighting the prevention of nuclear proliferation [4][2]. He had previously indicated he was in no hurry to end the war [5], having earlier characterized Iran as a failed nation with many leaders deceased following strikes [6].
The RNC Midterm Convention strategically focused on the upcoming November elections. Beginning September 9, 2026, the Republican National Committee's Midterm Convention aimed to mobilize voters for the critical November midterm elections [1][2][3][4]. These elections were framed as a vital contest against the "radical left" and Democrats to maintain control of Congress [1][2][3][4]. Trump urged his supporters to vote as if he were personally on the ballot [4][2], with the convention and his remarks prioritizing GOP policy issues such as border enforcement, health care, and the integrity of elections [4][2].
Prediction markets indicated specific themes Trump would likely mention. Analysts in prediction markets anticipated that Trump's speech would likely include terms such as 'Oil / Gas / Gasoline', 'MAGA / Make America Great Again', 'Communist / Communism', 'Transgender', and 'Biden' [7].
Sources (7)
  1. 1WATCH: 2026 Republican Midterm Convention | Night 1 | PBS Newspbs.org
  2. 2GOP midterm convention: Trump defends Iran war, slams Democrats...apnews.com
  3. 3Here's who's speaking at the GOP midterm convention in Dallascnbc.com
  4. 4Key takeaways from Trump's GOP midterm convention speechabcnews.com
  5. 5US-Iran Peace Prospects Dim as Trump Rejects Truce Extension | Bloomberg Businessweekyoutube.com
  6. 6Trump Dismisses ‘Little War’ With Iran, Woman Shot Dead by NYPD | Bloomberg Daybreak: US Editionyoutube.com
  7. 7What will Trump say during the RNC Midterm Convention (Night 1)?: Live Odds (Full Field) | ContractTaxcontracttax.com

6. Based on his 2025-2026 rally speeches, what is the historical frequency of Donald Trump mentioning terms like 'Biden', 'China', and 'Radical Left'?

Biden mention probability (RNC Midterm Convention)~87% [1][2][3]
China mention probability (RNC Midterm Convention)~68-85% [1][2][3]
Radical Left mention probability (RNC Midterm Convention)~77-92% [1][2][3]
The available research does not detail Donald Trump's 2025-2026 rally speech frequencies. Specifically, research output does not provide the historical frequency of him mentioning terms such as 'Biden', 'China', and 'Radical Left' in his speeches from that period.
Prediction markets estimated Trump's likelihood of mentioning key terms. As of September 2026, these markets assigned probabilities to Donald Trump mentioning specific terms during the first night of the RNC Midterm Convention. These probabilities included approximately 87% for 'Biden', 68-85% for 'China', and 77-92% for 'Radical Left' [1][2][3].
The RNC Midterm Convention featured Trump as keynote speaker. This event took place in Dallas on September 9-10, 2026, with Donald Trump serving as the keynote speaker on its first night. The convention's primary themes focused on tax cuts, election integrity, and border security [4][5][6][7].
Sources (7)
  1. 1What will Trump say during the RNC Midterm Convention (Night 1)?: Live Odds (Full Field) | ContractTaxcontracttax.com
  2. 2What will Trump say during the RNC Midterm Convention (Night 1)? - Kalshi noteringen | CoinRithmcoinrithm.com
  3. 3What will Trump say during the RNC Midterm Convention (Night 1)? - Probabilidades na Kalshi | CoinRithmcoinrithm.com
  4. 4GOP midterm convention: Trump defends Iran war, slams Democrats...apnews.com
  5. 5GOP launches midterm 'Trumpapalooza' convention in Dallasfoxnews.com
  6. 6Trump promises $5K 'dividend' to all adult Amercians if GOP keeps...abcnews.com
  7. 7What Will Trump Say At The RNC? The Bet Moved Up A Nightoddsshopper.com

7. How have the core messages in Donald Trump's major addresses evolved from the 2024 RNC to the 2026 Midterm Convention?

2024 RNC Messaging FocusNational unity, border security, "America First" foreign policy, economic recovery (2024 RNC [1][2])
2026 Midterm Convention FocusBase energization and midterm-specific mobilization (2026 Midterm Convention [3][4][5])
2026 Predicted Mention ProbabilityAbove 70% for topics like oil/gas, "MAGA," "Communist," transgender issues, "Biden," and "healthcare/affordability" (2026 RNC Midterm Convention [6])
Donald Trump's core messages significantly evolved between the 2024 Republican National Convention (RNC) and the 2026 RNC Midterm Convention. At the 2024 RNC, his focus was on national unity and a broad populist agenda. Following an assassination attempt, Trump centered his messages on a promise of national unity, which was combined with a populist agenda emphasizing border security through mass deportation, an "America First" foreign policy stance, and strategies for economic recovery [1][2].
By 2026, Trump's messaging shifted to energizing his base for midterm elections. The 2026 RNC Midterm Convention, held in Dallas and dubbed "Trump-a-Palooza," moved away from abstract unity themes to instead energize his political base, with Trump urging supporters to treat him as if he were "on the ballot" [3][4][5]. Core messages for this convention included defending his administration's actions in the war in Iran, attacking Democrats as "extremists," and a strong focus on midterm-specific mobilization to counter historical trends where the sitting president's party often loses seats [3][7][4]. Prediction market data for the convention's first night indicated a high probability (above 70%) that he would discuss topics such as oil/gas/gasoline, "MAGA," "Communist," transgender issues, "Biden," and "healthcare/affordability" [6].
Sources (7)
  1. 1RNC takeaways: Trump deviates from unity message - Spectrum Newsspectrumlocalnews.com
  2. 2WATCH: Donald Trump speaks at 2024 Republican National... - PBSpbs.org
  3. 3Key takeaways from Trump's GOP midterm convention speechabcnews.com
  4. 4GOP midterm convention: Trump defends Iran war, slams Democrats...apnews.com
  5. 5GOP launches midterm 'Trumpapalooza' convention in Dallasfoxnews.com
  6. 6What will Trump say during the RNC Midterm Convention (Night 1)?: Live Odds (Full Field) | ContractTaxcontracttax.com
  7. 7Trump defends Iran war, slams Democrats and pledges cashapnews.com

8. What publicly accessible archives provide searchable transcripts of Donald Trump's campaign speeches from 2025 through September 2026?

Speech ArchivesFactba.se (now Roll Call), American Presidency Project, Rev Transcript Library [1][2]
Keynote Address DateSeptember 9, 2026 [3][4][5][6]
Keynote Address Event2026 Republican Midterm Convention [3][4][5][6]
Several publicly accessible archives store Donald Trump's speeches, yet coverage for 2025-2026 is unspecified. Publicly accessible archives for Donald Trump's speeches include the Factba.se database, now hosted by Roll Call, the American Presidency Project, and the Rev Transcript Library [1][2]. However, the available information does not specify whether these archives specifically cover campaign speeches from 2025 through September 2026.
Donald Trump delivered a significant speech in September 2026 at the Republican convention. Donald Trump delivered a keynote address on September 9, 2026, during the first night of the 2026 Republican Midterm Convention [3][4][5][6]. The convention was held in Dallas, Texas, from September 9–10, 2026 [3][4][5][6].
Sources (6)
  1. 1The Independent Databases Archiving the Trump Administrationtime.com
  2. 2Factbase search – Roll Callrollcall.com
  3. 3GOP midterm convention: Trump defends Iran war, slams Democrats...apnews.com
  4. 4Republican National Committee Midterm Convention Day 1 - C-SPANc-span.org
  5. 5Trump promises $5K 'dividend' to all adult Amercians if GOP keeps...abcnews.com
  6. 62026 Republican National Convention - Wikipediaen.wikipedia.org

9. How do the key platform issues of candidates Trump is endorsing in the 2026 midterms align with potential topics for his convention speech?

Speech DateWednesday, September 9, 2026 [1][2]
Key Promise$5,000 for Americans if Republicans win midterms [3][1]
Predicted MentionsOil / Gas / Gasoline, Biden, MAGA / Make America Great Again [4][5][6][7]
Donald Trump's 2026 convention speech aims to mobilize midterm voters. Scheduled for Wednesday, September 9, 2026, in Dallas, Texas, the address at the Republican National Committee Midterm Convention intends to invigorate party supporters for the upcoming November elections [1][2]. The rhetoric is expected to boost Republican enthusiasm and frame Democrats as extremists, specifically targeting their "insurgent left wing" [3][1].
Trump's speech will feature key promises and recurring themes. Anticipated campaign promises include a pledge to offer Americans $5,000 each if Republicans secure midterm victories [3][1]. Prediction markets indicate a high likelihood that Trump will address "Oil / Gas / Gasoline," "Biden," and "MAGA / Make America Great Again" during the convention's first night [4][5][6][7]. Criticism of Democrats and foreign policy topics, such as previously discussing Iran as a "failed nation," are also expected [3][1][8].
Direct alignment with endorsed candidates' specific platforms is unclear. While the speech is expected to cover these broad themes, the provided research does not explicitly detail the specific platform issues of candidates endorsed by Trump for the 2026 midterms. Consequently, a direct correlation between those specific candidate platform issues and Trump's potential convention speech topics cannot be fully established based on the available information.
Sources (8)
  1. 1GOP midterm convention: Trump defends Iran war, slams Democrats...apnews.com
  2. 2Here's who's speaking at the GOP midterm convention in Dallascnbc.com
  3. 3Trump Promises Americans $5000 Each if Republicans Win Midtermswsj.com
  4. 4What will Ken Paxton say during RNC Midterm Convention? - Kalshi Odds | CoinRithmcoinrithm.com
  5. 5What will Greg Abbott say during RNC Midterm Convention? - Kalshi Odds | CoinRithmcoinrithm.com
  6. 6What will Ted Cruz say during RNC Midterm Convention? - Kalshi Odds | CoinRithmcoinrithm.com
  7. 7What will Trump say during the RNC Midterm Convention (Night 1)? - Kalshi noteringen | CoinRithmcoinrithm.com
  8. 8Trump Dismisses ‘Little War’ With Iran, Woman Shot Dead by NYPD | Bloomberg Daybreak: US Editionyoutube.com

10. What Could Change the Odds

Key Catalysts

On September 9, 2026, President Donald Trump delivered the keynote address on the opening night of the Republican National Committee's inaugural midterm convention in Dallas, Texas [1][2]. During his speech, Trump urged voters to "pretend that I am on the ballot" [1] and promised that if Republicans retain control of both the House and Senate, his administration would issue a $5,000 dividend check to every adult U.S. citizen [1][3][4].
Trump's lengthy and wide-ranging address also featured a defense of his administration's actions regarding the war in Iran, sharp criticisms of Democratic opponents whom he labeled "radical communists," and claims that his second term has been the most financially successful period in presidential history [1][5][4]. This 2026 midterm convention, an unprecedented event for the party, was staged to centralize Donald Trump in the midterm election cycle, with the goal of boosting voter turnout despite his current low approval ratings [6][7][8]. Several vulnerable Republican candidates facing tight races notably skipped the event [6][8]. Other speakers on the opening night included Attorney General Todd Blanche [2].

Key Dates & Catalysts

  • Expiration: September 24, 2026
  • Closes: September 24, 2026
Sources (8)
  1. 1Trump tries to energize his base by placing himself front and center: ‘I’m on the ballot’:nbcnews.com
  2. 2Republican Midterm Convention Day 1 Wrap-Up | Video | C-SPAN.orgc-span.org
  3. 3Trump's Republican convention keynote speech features stunning cash vow | Fox Newsfoxnews.com
  4. 4US citizens will receive $5,000 if Republicans win midterms, Trump claims in lengthy convention speech | US midterm elections 2026 | The Guardiantheguardian.com
  5. 5GOP midterm convention: Trump defends Iran war, slams Democrats...apnews.com
  6. 6Republicans tie midterm hopes to Trump at Dallas convention despite political risks | Reutersreuters.com
  7. 7Trump gets one more starring role at GOP’s midterm convention | CNN Politicscnn.com
  8. 8Explainer: What to know about Trump's unusual midterm convention | Reutersreuters.com

12. Related News

-86.0pp
Last updated: September 10, 2026, 12:21 UTC

Trump's RNC Speech Content Drives Collapse in Mention-Based Markets

Former President Donald Trump's keynote address on the first night of the Republican Midterm Convention in Dallas on September 9, 2026, prompted a wholesale repricing in prediction markets speculating...

13. Historical Resolutions

Historical Resolutions: 20 markets in this series

Outcomes: 13 resolved YES, 7 resolved NO

Recent resolutions:

  • KXTRUMPMENTION-26SEP09-WIND: NO (Sep 10, 2026)
  • KXTRUMPMENTION-26SEP09-VENE: YES (Sep 10, 2026)
  • KXTRUMPMENTION-26SEP09-TRAN: YES (Sep 10, 2026)
  • KXTRUMPMENTION-26SEP09-SUPR: YES (Sep 10, 2026)
  • KXTRUMPMENTION-26SEP09-SPAC: YES (Sep 10, 2026)