Former Democrat Joe Manchin is hitting the campaign trail for Republican Susan Collins in Maine, and the only people surprised are the ones who still think party labels mean something in Washington.

This is the uniparty in plain sight. Manchin and Collins have spent their careers doing the same work from opposite sides of the aisle: advancing the establishment's agenda while posturing as independent-minded moderates. When it actually matters — on spending, on Trump's priorities, on preserving the swamp's power structures — both reliably vote against America First interests.

Manchin, who left the Democratic Party to become an independent before retiring from the Senate, will campaign alongside Collins in Maine on Wednesday, her campaign confirmed to Fox News Digital. Collins is locked in a tight race against former state Sen. Troy Jackson as she seeks a sixth term.

Manchin told Semafor the appearance is meant to showcase Collins' bipartisan record — specifically, helping pass the Biden infrastructure package and blocking Trump's attempt to repeal Obamacare. "She is not a Trump senator," Manchin said.

That's the tell. In Washington, being "not a Trump senator" is the credential that matters. It's the same reason Collins voted against Trump's signature "one big, beautiful bill" this term, as Fox News noted. It's the same reason Manchin wrote in his memoir that he "wanted Republicans to win the Senate majority in 2024" — not because he's conservative, but because he believed Republicans would preserve the filibuster, what he called "the last guardrail preventing total partisan rule." Translation: the mechanism that lets a handful of swamp senators control what passes and what doesn't.

Collins' uniparty bona fides run deeper than infrastructure votes. According to the Portland Press Herald, she has been the Republican that Democratic senators call first when they want to move LGBT legislation forward. Collins led the repeal of "Don't Ask, Don't Tell," opposed amendments to ban same-sex marriage, joined Democrats in introducing the Equality Act in 2019, and co-authored the Respect for Marriage Act, which repealed the Defense of Marriage Act and passed the Senate 61-36. As Appropriations chair, she secured over $2.5 billion for the Ryan White HIV/AIDS Program and blocked cuts to PEPFAR, the global AIDS program — sending American tax dollars overseas while constituents struggle at home.

Collins spokeswoman Blake Kernen framed Manchin's endorsement as "a testament to her record of effective, independent leadership." Meanwhile, Rep. Alexandria Ocasio-Cortez, Sen. Elizabeth Warren, and Sen. Bernie Sanders are stumping for Jackson — which Kernen said "tells voters exactly how he would govern."

Fox News framed Manchin's move as a "sharp rebuke" to Schumer and a "political snub." The Portland Press Herald, for its part, ran an opinion piece celebrating Collins as a champion of LGBT equality — without once mentioning she's a Republican being backed by a former Democrat. Neither outlet named what's actually happening: the establishment closing ranks.

The real divide in American politics isn't Democrat versus Republican. It's the people versus the permanent Washington class that writes the checks, cuts the deals, and keeps the machinery running no matter which party holds the gavel. Manchin and Collins are the same animal in different packaging.

The question isn't why a former Democrat is campaigning for a Republican. The question is why anyone still believes there's a difference.