Sen. Dianne Feinstein said Thursday that it would be difficult not to support former Vice President Joseph R. Biden Jr. if he runs for president in 2020.

“I’ve worked with him, I saw him in action, I saw him as vice president, I saw his growth, his ability, and I saw his humanity,” the longtime senator told reporters. “He’s an incredible human being, so it’s very hard for me, if he runs, to ignore that.”

Feinstein’s fellow California Democrat, Sen. Kamala Harris, is also weighing a run for the White House. Asked about her colleague’s potential candidacy, Feinstein said, “I love Kamala. But this is a different kind of thing.”

Feinstein’s remarks followed comments she made to Politico earlier Thursday signaling her support for Biden, noting that he is a former chairman of the Senate Judiciary Committee. Feinstein is now the top Democrat on that panel.

Bridget Bowman contributed to this report. Also Watch: Pelosi seeks a return to regular order, like many before her