BOSTON – It was a disastrous Super Tuesday for Sen. Elizabeth Warren, headlined by an embarrassing loss in her home state of Massachusetts, where she finished a distant third and lost to former Vice President Joe Biden.

The U.S. senator from Massachusetts all but disappeared on a night when the Democratic presidential primary turned into a head-to-head race between Biden and Vermont Sen. Bernie Sanders.

Warren not only won zero states; she didn’t finish second in any primary. Her Massachusetts finish was actually her top performance and the only state where she won more than 20% of the vote as of 1:30 a.m. EST.

But Warren's campaign signaled she has no plans to drop out of the race Tuesday night, reminding supporters in an email appealing for donations that results are still trickling in and six more primaries are a week away.

Warren, who led national polls in the fall, appeared to finish above the 15% viability threshold in only a handful of states, meaning she will leave Super Tuesday with far fewer delegates than the two frontrunners.

Biden was declared the winner of Massachusetts by the Associated Press. With 80% of the votes reporting, Biden had nearly 34% of the vote, followed by Sanders with 26% and Warren 21%.

The former vice president did not campaign in Massachusetts, build out any organization or air any television ads in the state. In fact, a WBUR poll last Friday showed him polling at 9% in fifth place. Biden’s rapid post-South Carolina surge was arguably on display in Massachusetts more than any other state.

Strong in the South: Biden sweeps the south on Super Tuesday, building on South Carolina win

Warren's lackluster performance even attracted the attention of President Donald Trump: “Elizabeth ‘Pocahontas’ Warren, other than Mini Mike, was the loser of the night. She didn’t even come close to winning her home state of Massachusetts. Well, now she can just sit back with her husband and have a nice cold beer!”

Warren, who has campaigned in the party’s progressive lane, has lost support among the party's left to Sanders. Her campaign has instead focused on patching together delegates. But it’s hard to find a pathway for her to win a majority of the 1,991 delegates needed to win the Democratic nomination, meaning she would have to win a brokered convention.

Nonetheless, she looked ahead in an early evening campaign speech in Detroit.

"Predictions are a terrible business. Pundits have gotten it wrong over and over," Warren said. "Cast a vote that will make you proud. Vote from your heart. And vote for the person who you think will make the best president of the United States.”

Are you registered to vote? Check your status or register online now

Before the polls closed in Massachusetts Tuesday night, Warren's campaign forged ahead with an email outlining the senator's travel schedule this week. She plans to hold events in Michigan, Arizona and Idaho – three states that vote later this month.