The Republican midterm convention in Dallas on September 9-10, 2026, saw Vice President JD Vance take center stage, prompting widespread speculation about his potential 2028 presidential bid. During a closed-door meeting, delegates from key states chanted "Forty-eight!" in reference to the 48th president, signaling their support for Vance. While Vance himself did not directly address the 2028 election, he emphasized the importance of the 2026 midterm elections, framing them as a choice between "sensible Republicans" and the "crazy" left, and warning of Democratic investigations if they win.

Vance's keynote address on Thursday night was widely viewed as an early test of his White House prospects. Many Republicans see the 42-year-old Marine veteran and Yale Law School graduate as well-positioned to carry forward the party's populist, anti-establishment agenda after President Donald Trump's departure from office, particularly given Trump is constitutionally barred from seeking a third term. Trump, 80, dominated much of the convention, including a nearly two-hour speech on Wednesday where he promised a $5,000 "Trump dividend" to every American if Republicans won the November 3 congressional elections.

Despite Trump's efforts to mobilize voters, opinion polls show his popularity at an all-time low. The convention also highlighted internal party discussions about leadership beyond Trump, with some Republicans, like Senator Ted Cruz, suggesting a broader debate over the party's direction. While a Financial Times/Focaldata poll showed 43% of Republicans backing Vance for the 2028 nomination, Secretary of State Marco Rubio garnered 21% support, even though Rubio was not present at the convention and has indicated he would not challenge Vance. Vance also raised $2 million for the RNC at a Dallas fundraiser during the convention.