Vice President Joe Biden on Wednesday announced that he won't seek the 2016 Democratic nomination for president.

The sudden announcement ends months of speculation about Biden entering the race and boosts Hillary Clinton's campaign, though Biden did not endorse a candidate.

Flanked by his wife Jill and President Barack Obama, Biden told reporters gathered in the White House Rose Garden that it was too late for him to enter the race. He also cited the recent death of his son, Beau.

“While I will not be a candidate, I will not be silent,” Biden said. “I intend to speak out clearly and forcefully, to influence as much as I can where we stand as a party and where we need to go as a nation.”

Clinton praised Biden in a tweet: “.@VP is a good friend and a great man. Today and always, inspired by his optimism and commitment to change the world for the better. -H.”

Biden, who served nearly 40 years in the Senate and two terms as vice president, is not expected to seek another political office.