Bernie Sanders wins the Northern Mariana Islands Democratic caucuses over rival Joe Biden, NBC News projects.

The Vermont senator had 84 votes, topping Biden, who received 48 votes on Saturday in the U.S. territory in the Pacific Ocean. Because it is a territory and not a state, Northern Mariana Islands residents are not able to vote in the general election.

Sanders picked up four of the six delegates up for grabs, but Biden still holds a 860 to 706 lead to secure the Democratic nomination.

The two will face off Sunday night in the first head-to-head debate of the campaign cycle. The debate was originally supposed to take place in Phoenix, but was moved to Washington, D.C., over fears of the coronavirus.