Former Vice President Joe Biden won smashing victories in Democratic presidential primaries in Florida, Illinois and Arizona on Tuesday night, further cementing his advantage over Sen. Bernie Sanders (I-Vt.) in a nomination race soon to be frozen in place for weeks as growing fears over the coronavirus pandemic cause voters to lose interest and states to delay primaries.

The status of a fourth primary, Ohios, scheduled for Tuesday is up in the air. Voters there did not cast ballots in person after GOP Gov. Mike DeWine and the states health commissioner ruled that conducting the election would be a threat to public health, causing the primary to be postponed.

Bidens wins add to his significant advantage in delegates over Sanders and showed his coalition of older voters, Black voters and ideological moderates expanding as the Democratic rank and file appear eager to end the primary battle and begin focusing on a November showdown with President Donald Trump.

Biden now has an advantage of nearly 300 delegates over Sanders and has won 19 of the last 24 states to vote in the race. He was on track to win Florida by close to an astounding 40 percentage points, and he held strong double-digit leads in Illinois and Arizona. By the end of the night, he was projected to have more than half of the 1,991 delegates needed to secure the right to challenge Trump.

Our campaign has had a very good night. And weve moved closer to securing the Democratic partys nomination for president, Biden said in a speech live-streamed from his home in Wilmington, Delaware. Were doing it by building the broad coalition that we will need to win in November.