ALBANY, N.Y. (AP) — New York City Mayor Bill de Blasio faces a crowded primary field as he seeks a second term leading the nation's largest city.

De Blasio is one of five Democrats running in Tuesday's primary. He's considered the favorite against Sal Albanese, Richard Bashner, Robert Gangi and Michael Tolkin.

Albany Mayor Kathy Sheehan, Rochester Mayor Lovely Warren and Buffalo Mayor Byron Brown all face their own Democratic primary challengers in Tuesday's election.

In Syracuse, three Democrats are running to succeed fellow Democrat Stephanie Miner, who's term-limited.

Most party primaries in New York state are closed contests, meaning a voter must be a registered member of the party in order to cast a ballot.

The winners of Tuesday's race will all move to the November general election.