Senator Elizabeth Warren of Massachusetts, who campaigned as a progressive Democrat, said Thursday that she is dropping out of 2020 U.S. presidential race.

While Super Tuesday left the Democrats with a pair of front-runners whom President Donald Trump believes he can define and defeat, there are still some private worries in the White House.

Elizabeth Warren huddled with her campaign advisers on Wednesday to determine if there was a reason to stay in the Democratic presidential race after a dismal Super Tuesday that saw her finishing no higher than third in any state — including her own.