Symone Sanders, who served as Sen. Bernie Sanders’ (I-Vt.) press secretary during his 2016 run, has joined challenger Joe Biden’s presidential campaign.

On Thursday, The Associated Press reported that she had signed on as the former vice president’s senior adviser.

Responding to the news in a tweet, Symone Sanders called Biden and his wife, Jill Biden, “a class act.”

“Over the course of this campaign, Vice President Biden is going to make his case to the American [people],” she wrote. “He won’t always be perfect, but I believe he will get it right.”