Former Massachusetts Gov. Bill Weld says, “Could I vote for a Democrat? Hell yes. If it’s Trump against Joe Biden, I’m with Biden in a heartbeat.”

Weld’s comments came during an appearance at the CITIZEN by CNN conference. He was joined onstage by former South Carolina governor and congressman Mark Sanford and former Illinois congressman Joe Walsh. They are also seeking the Republican presidential nomination against Trump.

Weld says he’d never support Trump “for any office under any circumstances” but could “very well” support a third-party candidate.