Democrat Sen. Joe Manchin Officially Endorses GOP Sen. Lisa Murkowski’s Campaign

A file image of Senators Joe Manchin (D-W.Va) and Lisa Murkowski (R-Alaska) chatting before a Senate Energy and Natural Resources Committee nomination hearing for former energy lobbyist David Bernhardt to be Interior secretary on Capitol Hill in Washington, U.S. on March 28, 2019. Yuri Gripas/Reuters

Democratic Sen. Joe Manchin on Sunday crossed party lines and officially announced that he is endorsing Republican colleague Lisa Murkowski (R-Alaska) in her bid for reelection for the state’s Senate seat.

Manchin (D-W.Va.) said back in April that he would endorse his GOP Senate colleague—who often breaks from her party on key issues and votes with Democrats—“in a heartbeat” but up until now, he had not officially done so.