AP Photo/Matt Rourke, File
AP Photo/Matt Rourke, File

The Massachusetts senator dropped out of the race last month, shortly after a disappointing third-place finish in her home state.

WASHINGTON (AP) — Elizabeth Warren endorsed Joe Biden on Wednesday, becoming the last of the former vice president’s major Democratic presidential rivals to formally back him.

Warren shared her endorsement in a nearly four-minute video posted to Twitter on Wednesday morning.

“Joe Biden is a selfless public servant. He is committed to the fight for social, racial, and economic justice,” Warren said. “Joe Biden will lead a government that works for the American people.”

The Massachusetts senator dropped out of the race last month, shortly after a disappointing third-place finish in her home state. She refused to immediately endorse Biden or her fellow progressive Bernie Sanders.

Sanders, who suspended his campaign last week, endorsed Biden on Monday, A day later, former President Barack Obama announced his public backing of Biden.