Sitting President Donald Trump, who is projected to easily win the Republican Party's primaries on Tuesday, weighed in on Bloomberg's exit and lashed out at Biden with a series of tweets on Wednesday morning.

Senator Elizabeth Warren of Massachusetts and U.S. Congresswoman Tulsi Gabbard of Hawaii are still in the Democratic primary race, as a Biden-Sanders matchup took shape.

"Before the pundits call it a day, the ST (Super Tuesday) results don't mean this competition is over," Julian Zelizer, a professor of history and public affairs at Princeton University, tweeted on Wednesday.

Sanders "has a substantial number of delegates, many important contests still ahead, and everyone should see by now that uncertainty is the only certainty," Zelizer stressed.

The next Democratic primaries will take place on March 10 for voters of six states to cast ballot for their preferred presidential candidate this year.

The Super Tuesday Democratic primary decided over 1,300 pledged delegates to the DNC or roughly a third of the total. Typically, a candidate is only eligible to receive a share of the pledged delegates at stake if they win at least 15 percent of votes cast in a primary or caucus.

To win the Democratic presidential nomination, a candidate must receive support from a majority of all the 3,979 pledged delegates on the first ballot of the DNC, which election officials said must be at least 1,991 delegates.

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