Congressional Democrats are not embracing the possible nomination of former Democratic Sen. Joe Lieberman for FBI director, CNN reported.

Democrats view Lieberman, the party’s 2000 vice presidential candidate, as having committed partisan treason when he endorsed Republican Sen. John McCain’s bid for the White House in 2008, CNN said.

Lieberman had also blasted his own party’s nominee, Barack Obama, in a speech to the GOP convention.

“I don’t think many Democrats in the Senate are going to take it very well,” said veteran strategist Jim Manley, according to CNN. 

And Politico reported there is no love lost for Lieberman among Democrats as he emerges as a frontrunner to replace fired James Comey at the FBI.

“I don’t think there’s going to be much excitement about that from our side of the aisle,” said Sen. Claire McCaskill, D-Mo, Politico reports.

“Not because we don’t respect Joe Lieberman. But we need a law enforcement professional, not someone who’s run for office before. We don’t need anyone who’s put on a red shirt or blue shirt — or who’s campaigned for president.”

Lieberman ran for president in 2004, Politico noted.

“He has a history of angering Democrats and Republicans, which is probably a good experience for being FBI director,” said Sen. Chris Murphy, D-Conn., who holds Lieberman’s old seat.

“But my concern is about someone with a political background. This is a moment for someone with a law enforcement background.”

But Republicans are strongly supporting the idea of Lieberman at the FBI, according to Politico.

Sen. Lindsey Graham R-S.C., said: “If the president picked Joe Lieberman he’d be doing (the) country a good service and, I think, the FBI a good service.”