The former president and first lady threw their weight behind the presumptive Democratic nominee

Barack and Michelle Obama have endorsed Kamala Harris for the Democratic nomination for president, sharing the news in a joint phone call.

A video released by the campaign suggests the former president and first lady called Harris on Thursday while the vice president was in Houston, where she addressed the American Federation of Teachers and received a briefing on recovery efforts following Hurricane Beryl.

“We called to say, Michelle and I couldn’t be prouder to endorse you and do everything we can to get you through this election and into the Oval Office,” Barack Obama is heard telling Harris in a 55-second video of the call.

“This is going to be historic,” Michelle Obama tells Harris.