Former NYC mayor Bill de Blasio is running for Congress

The backdrop: After the New York State Court of Appeals rejected a map drawn by Democrats in the state legislature aimed at maximizing the number of Democratic House seats, a court-appointed mapmaker drew new preliminary maps that were released Monday.

• The maps made significant changes to districts in the name of competitiveness and compactness, including breaking up Rep. Jerrold Nadler's (D-N.Y.) district, which spans the West side of Manhattan and snakes down into Brooklyn.
• In the new map, Nadler would be placed in a contest against Rep. Carolyn Maloney (D-N.Y.), leaving a lower Manhattan-Brooklyn seat with no incumbent and a massive bench of Democrats waiting in the wings
• The maps are set to be finalized on Friday, with potential changes being made based on public feedback.

The state of play: A massive array of Democrats in the new district has signaled interest in running in the 10th.

• State Sen. Brad Hoylman, the only openly gay member of the New York State Senate, is the other major candidate currently running.

What he's saying: "I'm ready right now to serve and address the issues that are so deep in communities in Brooklyn and Manhattan," de Blasio said on Morning Joe this morning.

• De Blasio served as mayor of New York from 2014 to 2021 and briefly ran for president in 2020 on a progressive platform.