Massachusetts Sen. Elizabeth Warren said former New York City Mayor Michael Bloomberg previously supported Republican candidates.

“We’re here in Charleston, and you know who is going to be in Charleston later this week? It’s Donald Trump,” Warren said. “He’s going to be here to raise money for his buddy, Senator Lindsey Graham. Who funded Lindsey Graham’s campaign for reelection last time? It was Mayor Bloomberg. And that’s not the only right-wing senator that mayor Bloomberg has funded.”

“In 2016, he dumped $12 million into the Pennsylvania senate race to help reelect an anti-choice, right-wing Republican senator,” Warren added. “And I just want to say, the woman challenger was terrific. She lost by a single point. In 2012, he scooped in to try to defend another Republican senator against a woman challenger. That was me. It didn’t work, but he tried hard.”

Facts first:This is true. Bloomberg supported Republican Pennsylvania Sen. Pat Toomey’s re-election in 2016. He supported Scott Brown in his losing effort against Warren in 2012. In 2014, Bloomberg gave money to a super-PAC supporting Lindsey Graham.

Bloomberg spent nearly $12 million in 2016 to support the reelection of Republican Sen. Pat Toomey of Pennsylvania, an ally of his on the issue of background checks on gun purchases. The New York Times also reported in November he supported Republican Sen. Lindsey Graham of South Carolina in 2014.

In 2012, Bloomberg supported Brown over Warren, saying on his radio program as mayor he supported Brown because of Brown’s stance against requiring states to recognize concealed carry laws from other states.

Tonight, Bloomberg called such attacks a “side show” and not relevant to his record as mayor.