The Conservatives are losing control of Elizabeth Warren’s Senate seat, according to two former members of the leadership team.

Sen. Pat Toomey (R-Pa.) and former Chief of Staff Matt Bevin (R) said Monday they were leaving the Republican Party to join the progressive group MoveOn.com and the progressive advocacy group Democracy for America.

They said they were voting for Toomeys re-election bid.

The two former GOP leaders, who are now Democrats, joined MoveOn to fight for Warren, who in recent weeks has been in the news for a series of controversial comments.

In a recent speech, Warren said she was “not interested in hearing anything that I don’t agree with.”

MoveOn.org has also worked to elect Sen. Joe Manchin (D-W.

Va.), who has said he’s not running for re-nomination in 2018.

MoveOn endorsed Sen. Bernie Sanders (I-Vt.) in his 2016 presidential bid.

Sen. Cory Booker (D) is the third former GOP lawmaker to announce his 2020 reelection bid.

A key Democratic player in the party, Sen. Chuck Schumer (D), is the only Democrat to endorse Sen. Elizabeth Warren.