WASHINGTON (NEXSTAR)— The United Auto Workers (UAW) union endorsed President Joe Biden during a campaign event in Washington, D.C., on Wednesday.

“This November, we can stand up and elect someone who stands with us and supports our cause, or we can elect someone who will divide us and fight us every step of the way,” Shawn Fain, UAW President said.

The endorsement is an important one for Biden, who won the UAW’s endorsement in the 2020 campaign.

“And this choice is clear. Joe Biden bet on the American worker, while Donald Trump blamed the American worker,” Fain said.

Biden was the first president to ever join a picket line when he stood in solidarity with striking autoworkers in Michigan last year.

“Let me just say I’m honored to have your back and you have mine,” Biden said.

The endorsement comes just one day after former President Donald Trump defeated former U.N. ambassador Nikki Haley handily in the New Hampshire GOP primary.

Biden won New Hampshire’s Democratic primary with write-in votes, despite not campaigning in the Granite state.