[2] Brisport was raised in Prospect Heights, Brooklyn,[3] by a Caribbean immigrant father and a second-generation Brooklynite mother.

[11] At age 22, Brisport began organizing efforts in support of a bill to legalize same-sex marriage in New York.

[5] The bill was defeated in 2009, but Brisport continued organizing around the issue and same-sex marriage was legalized in New York two years later.

[13] Brisport joined the Democratic Socialists of America (DSA) shortly after Donald Trump's election as president, and got involved in their work on access to affordable housing.

[27] His campaign was also endorsed by Alexandria Ocasio-Cortez, Bernie Sanders, Cynthia Nixon, New York Communities for Change, and the Working Families Party.

[5][28] On election night of the Democratic primary on June 23, 2020, Brisport led the race with 52.25% of the vote against sitting Assemblywoman Tremaine Wright and former Montgomery staffer Jason Salmon.

[29] Brisport declared victory on July 23, once the absentee ballots had been counted and his lead over Wright had grown to 10,000 votes.

[17] Brisport was arrested while protesting the re-development of the vacant Bedford Union Armory in Crown Heights, Brooklyn.