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Oct 03, 2026

"🚨 SENATE SHOCKER! — LONGTIME DEMOCRAT SENATOR FLIPS AND JOINS REPUBLICANS!"

Former Sen. Joe Manchin has stepped directly into two of the most closely watched Senate contests of the 2026 midterm campaign, publicly backing Republican candidates in Maine and Michigan and promising to help at least one of them on the campaign trail. The move is a notable cross-party intervention, but headlines claiming that a longtime Democratic senator has suddenly “joined Republicans” overstate what actually happened.

Manchin is no longer a Democratic senator — or a senator at all. He left the Democratic Party in May 2024, registered as an independent, completed his Senate term in January 2025 and has not announced that he is joining the Republican Party. His latest move is an endorsement decision rather than a formal party switch.

The most prominent endorsement is in Maine, where Republican Sen. Susan Collins is seeking another term against Democratic nominee Troy Jackson, a former Maine Senate president and logger. During a September 14 appearance on CNBC, Manchin praised Collins as the “soul of the Senate” and said he intended to do what he could to help her campaign.

Collins’ campaign quickly highlighted the remarks, presenting Manchin’s support as evidence of the bipartisan relationships she has cultivated over decades in Washington. Manchin and Collins worked together on a series of cross-party negotiations during their overlapping Senate careers, and this is not the first time Manchin has backed Collins: he also supported her during her 2020 reelection campaign.

Manchin’s intervention is especially notable because Maine is one of the states both parties are watching closely as they compete for Senate control. Collins is the only Republican senator from New England, while Jackson is trying to convert a long-running Democratic effort to defeat her into a victory in November.

The endorsement also fits Manchin’s political identity better than the viral framing suggests. For much of his Senate career, the West Virginian positioned himself as a centrist willing to frustrate Democratic leaders on energy policy, taxes, spending, the filibuster and other major issues. When he left the Democratic Party in 2024, he said both major parties had been consumed by partisan extremism and that he wanted to represent what he called America’s “sensible majority.”

Even after becoming an independent, Manchin continued caucusing with Senate Democrats through the end of his term, preserving his committee standing and helping maintain the chamber’s existing organizational balance. His departure from the party therefore did not amount to a move into the Republican conference.

His support for Collins is also rooted in a long personal and legislative relationship. The two worked together in bipartisan groups that tried to broker agreements during government funding disputes and on major legislation. Collins’ campaign has pointed to their cooperation on the bipartisan infrastructure law, the Electoral Count Reform Act and other measures as evidence of a working partnership that survived partisan changes in Washington.

The Electoral Count Reform Act, enacted after the disputes surrounding certification of the 2020 election, clarified the vice president’s limited role in counting electoral votes and raised the threshold for members of Congress to object to a state’s electoral slate. Collins and Manchin were among the central Senate negotiators behind that bipartisan overhaul.

That history helps explain why Manchin’s support for Collins did not come as a complete surprise. Earlier in 2026, he had already spoken favorably about her and signaled a willingness to help her politically. After the September endorsement, both Manchin and Collins said they were discussing the possibility of appearing together at a campaign event in Maine.

The Maine race itself has gone through major changes during the election cycle. After the collapse of Graham Platner’s campaign, Democrats selected Troy Jackson as their nominee in July. Jackson has emphasized working-class economics and his background in northern Maine, while Collins has focused heavily on her seniority, constituent services and record of securing federal resources for the state.

National Democrats have also tried to link Collins more closely to President Donald Trump, while Collins has continued to emphasize moments when she has broken with her own party or the administration. Manchin’s endorsement gives Collins an additional argument that her support extends beyond the Republican base, but it does not by itself resolve the larger partisan dynamics of the race.

Manchin’s cross-party activity extends beyond Maine. In the same CNBC appearance, he also expressed support for Republican Mike Rogers in Michigan, who is running for an open Senate seat against Democratic nominee Abdul El-Sayed. CNN reported that Manchin’s support for Collins and Rogers places him behind Republican candidates in two battleground contests with implications for the Senate majority.

That broader pattern is why the “flips” language has attracted attention. A former Democratic senator who once held enormous leverage inside his party is now publicly helping Republican Senate candidates. But political support for Republican nominees is still different from formally becoming a Republican. No public filing or announcement shows Manchin changing his registration from independent to Republican.

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