Billionaire Mike Bloomberg dropped out of the presidential race Wednesday as Super Tuesday results revealed the two major Democratic frontrunners: former Vice President Joe Biden and Vermont Sen. Bernie Sanders.

Bloomberg said he was endorsing Biden for president. When Minnesota U.S. Sen. Amy Klobuchar announced her exit she also endorsed Biden, as did former South Bend, Ind., Mayor Pete Buttigieg, when he exited on Sunday.

“I’ve always believed that defeating Donald Trump starts with uniting behind a candidate who has the best shot to do it,” Bloomberg said in an email to supporters Wednesday morning. “After yesterday’s vote it is clear that candidate is my friend and a great American, Joe Biden.”

Bloomberg has also called Trump his friend, when he was the Republican mayor of New York City for 12 years.

It’s also likely that Massachusetts Sen. Elizabeth Warren will end her campaign soon after she finished third in her home state and failed to win any state on Tuesday.

Bloomberg spent nearly $200 million of his own money on Super Tuesday state election advertising– after already spending $400 million through January.

Bloomberg’s only won American Samoa.

Biden won nine of the 14 Super Tuesday states, including an upset in Texas, while Sanders was the predicted winner in California.

Biden also won Alabama, Arkansas,  Massachusetts, Minnesota, North Carolina, Oklahoma, Tennessee, and Virginia.

Sanders won Vermont, Colorado and Utah.