Sen. John Fetterman set off fellow Democrats after a surprise video at President Donald Trump’s Republican midterm convention put the Pennsylvania senator on-screen praising GOP Sen. Dave McCormick and rejecting “extremes and socialism.”
The prerecorded message played Wednesday night at the Republican National Committee’s first midterm convention, as Trump worked to energize Republicans for the Nov. 3 elections.
Fetterman stood before a U.S. steel mill in the video and introduced McCormick, who is running for re-election, as a “great friend” from “a different party.”
“I’m a commonsense Democrat. I’m always going to stand with America,” Fetterman said. “I’m always going to reject the extremes and socialism and that anti-American way of life.”
McCormick, Fetterman told Republicans, was “the kind of senator that gets the job done” and someone who will “fight for Pennsylvania.”
SHOCKING MOVE: Democratic Sen. John Fetterman makes a surprise video appearance at the GOP midterm convention, declaring he will reject “the extremes and socialism and that anti-American way of life.”
The appearance is a stunning turn for the first-term senator who skipped his… pic.twitter.com/dnbPPapjh0
— Fox News (@FoxNews) September 9, 2026
The steel mill setting fed directly into Fetterman’s pitch. He credited McCormick and Trump in remarks about protecting Pennsylvania’s steel industry, including the Nippon Steel investment in U.S. Steel that NBC News reported both Pennsylvania senators eventually backed.
“That’s exactly the kind of thing that we will work together and will work with President Trump to fight and defend the steel way of life right here in the Steel Valley,” Fetterman said.
Democrats pounced almost immediately. Rep. Sarah McBride of Delaware used X to turn Fetterman’s GOP convention cameo into a doomed-ocean-liner dig.
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“Being a Democratic politician who decides to speak at Trump’s midterm convention is like boarding the Titanic after it hit the iceberg,” McBride wrote.
Rep. Madeleine Dean of Pennsylvania told C-SPAN that the video had broken something for her.
“He lost me last night with that stunt. He, like me, should be talking about how do we make life more affordable for Americans,” Dean said.
Dean brushed aside whether Fetterman might formally leave the party, then argued that his Senate work no longer matched the values he ran on.
“What it’s time for him to do is represent Pennsylvania the way he ran — with the values that he ran on,” Dean said. “Sadly, the work that he is doing now as Senator doesn’t reflect those same values. It will be up to John whether or not he changes parties.”
Rep. Madeleine Dean on Sen. John Fetterman’s RNC appearance:
“He lost me last night with that stunt. He, like me, should be talking about how do we make life more affordable for Americans.” pic.twitter.com/WEXqVduxJn
— The Post Millennial (@TPostMillennial) September 10, 2026
Dean also told reporters Thursday at a House Democratic event that her “constituents are livid” and accused Fetterman of showing little interest in committee work.
“I got to know and really like him and his family and his values,” Dean said, while recalling that she briefly ran against him in the 2018 race for Pennsylvania lieutenant governor.
“But what we have seen in his service as a senator is something very different than when I got to know around John,” Dean continued. “We can see in his work ethic that he’s just not present. He doesn’t participate much at all in his own committees, let alone attend them.”
Conor Lamb, the former Democratic congressman Fetterman defeated in the 2022 Senate primary, mocked the video to The New York Times as having “all the persuasiveness of a North Korean newscast.”
Rep. Chris Deluzio, a Pennsylvania Democrat representing a district at the top of the GOP target list, faulted Fetterman for not showing up in Dallas himself, calling him “too lazy to do it in person.”
Pittsburgh Democratic operative Jordan Rhone framed the cameo as a Senate-control problem for the party.
“Daily reminder that we need to win 52 Senate seats, thanks to John Fetterman,” Rhone posted on X.
The party-switch chatter followed Fetterman even after he tried to shut it down.
After the video aired, Fetterman framed his remarks as an introduction for McCormick, not a defection notice.
“My remarks introduced Dave McCormick as a great American and friend. We are in different parties, but we are both Team PA,” Fetterman said. “We have delivered hundreds of millions of dollars back to Pennsylvania, fought for improved transportation and affordable housing, and the Steel Way of Life.”
He also told Democrats that a Republican Senate takeover would not change where he caucuses.
“I’m a lifelong Democrat who votes overwhelmingly with my party—and should the Senate flip in November, I will still be the 51st vote that I ran on,” Fetterman said.
The video came after repeated strains between Fetterman and the Democratic left over Israel, immigration enforcement, Trump administration nominees and the Iran war.
The Hill reported that Fetterman has been one of the Senate’s most vocal Democratic supporters of Israel and has criticized Democrats who sought to restrict U.S. support for the country.
In July, Fetterman was the lone Senate Democrat to oppose a war powers resolution that would have forced Trump to wind down the Iran war.
Senate Majority Leader John Thune had already said he would welcome Fetterman into the Republican Party. Fetterman also confirmed that Republicans had approached him about switching parties, though he would only describe those talks as private.
Israel, Fetterman told The Hill’s Alexander Bolton at the Hill Nation Summit, was the issue that could make him leave.
“If our party ever becomes — and just makes it official — the anti-Israel party, that’s when I would leave,” Fetterman said.
He also warned that his “long-term concern” was that Democrats would “back away and turn their back to Israel.”
Fetterman and McCormick had already linked arms outside the convention video. Earlier this summer, the two senators filed a joint political committee called Common Ground PA, aimed at raising money from donors who want to support both of them.
Polling has captured how unusual Fetterman’s political map has become in Pennsylvania. A late August New York Times, Philadelphia Inquirer and Siena University survey of registered voters found 73 percent of Republicans viewed him favorably, compared with 22 percent of Democrats.
USA Today reported that Fetterman’s approval among Pennsylvania Republicans was almost 80 percent, while he was badly underwater with Democrats and highly vulnerable to a 2028 primary challenge.
Fetterman rejected speculation about becoming a Republican or independent in a May interview with Politico.
“I’m a Democrat, and I’m staying one,” Fetterman said.
