Fetterman Crosses the Aisle: Democratic Senator Praises Trump at RNC, Infuriates His Own Party

John Fetterman spoke at the RNC tonight and the Democrats are not happy.

🚨 Pennsylvania Dem Sen. John Fetterman has cut a video address for the GOP convention tonight in which he praises President Trump & Republican Sen. Dave McCormick for helping America's steel industry@axiosalex @hollyotterbein scoop https://t.co/edC1gfsukO
— Marc Caputo (@MarcACaputo) September 9, 2026

DALLAS — Pennsylvania Sen. John Fetterman (D) is preparing to make a bombshell appearance Wednesday night at the GOP convention, in a video praising President Trump and Republican Sen. Dave McCormick for helping America's steel industry, Axios has learned.
Why it matters: Fetterman's stunning turn — a Democratic senator in a supporting role at the GOP's showcase campaign event, fewer than eight weeks before the Nov. 3 midterms — marks a dramatic escalation in Fetterman's growing estrangement from his party.

Fetterman isn't expected to announce that he's switching parties, sources tell Axios. But he is going to distance himself from socialism in the Democratic Party's left wing, sources familiar with the situation said.
Democrats are certain to see the cameo as political mutiny — and it will supercharge questions about whether he'll ultimately leave the Democratic Party before he's up for reelection in 2028.
It's also a major coup for Trump, who has long reveled at the idea of winning over former Democrats to his side.
If Fetterman were to eventually switch parties, it would make Democrats' uphill battle to take control of the Senate much more difficult. They currently need to flip four seats, including some in red states, to win a majority.
Behind the scenes: Fetterman will make the remarks while introducing McCormick, who also represents Pennsylvania, sources said. McCormick helped arrange Fetterman's appearance, according to a source with knowledge of the situation.
McCormick has courted and been friendly with Fetterman for months.
The big picture: Fetterman, a first-term Democrat, has become deeply unpopular with voters in his party — including his constituents in Pennsylvania — as he has increasingly warmed to Trump. He's praised the president's defense of Israel at a time when many Democrats — and some Republicans — have criticized Israel's actions in Gaza.
At the same time, Fetterman has won a following among Republicans who have relished his willingness to take on members of his own team.