Max Rose announced on Sunday that he will not be running for mayor, after raising speculation last month when he opened a campaign account.

The former 11th District Congressman made the announcement via twitter, writing that he made the decision after "serious consideration." 

Rose also sent a message to the other candidates.

"I urge every candidate to recognize that across the five boroughs no one believes that City Hall is on the side of the working class. People are scared and unsure if the New York they love will exist in the years to come," said Rose.

Last year, Rose was defeated in his reelection bid by State Assemblywoman Nicole Malliotakis, who was sworn into congress today. While not running for Mayor, Rose promised he will still continue to fight for the city.