Peggy Flanagan won her Senate seat less than twenty-four hours ago. She hasn't been sworn in. She hasn't hired a chief of staff. She hasn't located her office in the Russell Building. But she has located her first target.

"I am tremendously grateful for Chuck Schumer's leadership," Flanagan told reporters, "and I think it is time for new leadership."

That's political knife work. The gratitude is the sheath. The second clause is the blade. And Flanagan wasn't alone.

Michigan Senator-elect Abdul El-Sayed piled on within the same news cycle: "I do believe we need new leadership and I think people are hungry." Kansas Senator-elect Adam Hamilton and Maine Senator-elect Troy Jackson both declined to endorse Schumer for Majority Leader.

Schumer, standing at DSCC headquarters — the same building where he'd orchestrated the midterm strategy — held a press conference that read like a man talking to a mirror. "The issue is not me," he insisted. "I'll be reelected as majority leader."

"This is not about me. This is about the American people and what they want and what they need and what we can do to help them. Plain and simple."

Two consecutive answers about how it's not about him. Both answers entirely about him.

The speed of this revolt is the story. Democrats just won the biggest Senate flip in years, and the internal war started before the victory champagne went flat. Progressives see the majority as their mandate. The establishment sees it as their machinery. Both sides believe the other is a passenger who should sit down and be grateful.

This is what happens when a coalition is built on opposition rather than agreement. When the only unifying principle is "not Trump," the coalition holds exactly as long as it takes to win. The morning after, you need an actual agenda — and agendas require priorities, and priorities create losers within the party.

Flanagan, El-Sayed, Hamilton, and Jackson aren't rebelling because Schumer lost. They're rebelling because he won and they don't think he deserves credit for it. The progressive wing watched candidates like El-Sayed energize younger voters and concluded the establishment rode their coattails to a majority.

Schumer's been in the Senate since 1999. He's survived leadership challenges before. But he's never faced one that started before the new members had their parking passes.

Four senators-elect refused to back the incoming Majority Leader on day one. The last Democratic Senate majority lasted two years. This one is already on the clock.