Diane Gordon, who was jailed in 2008 and spent two years in prison, previously ran to unseat Ms. Barron, then an assemblywoman, two years ago.
During that campaign, her petitions were challenged on the grounds that a felony conviction precluded her from being on the ballot. But the Board of Elections reportedly ruled that since her parole period had ended by that time, she could run. She finished third.
Sources in the district allege that Ms. Gordon may be running again to give a boost to her former staffer, James Tillman. Mr. Tillman is running for the assembly, and, the theory goes, the better-known Ms. Gordon could help prop up her ally by running as a ticket.
Mr. Tillman happens to be running against Ms. Barron’s husband, ex-Councilman Charles Barron and community activist Chris Banks for the open assembly seat, which was vacated by Ms. Barron last year when she won her husband’s former council seat.
District leaders are relatively obscure, unpaid officials in the local party machines. Both Ms. Barron and her husband serve as district leaders in the East New York-based district.
Ms. Gordon and Ms. Barron did not return requests for comment.