Menachem Raitport is running as the only Republican candidate in Brooklyn's 43rd Assembly District.
A GOP spokesman said the poster depicts Al Sharpton as someone with control over de Blasio.
Rebecca Seawright, a mother of two, beat three Democrats competing for the 76th District Assembly seat.
Republican mayoral candidate Joe Lhota is trying to foster a good relationship with Rev. Sharpton.
The GOP candidates for mayor focused on the state of the city's schools in the wake of low test scores.
George McDonald and his wife had been accused of taking loans in her dad's name.
Dan Halloran on New York politics: "Money is what greases the wheels... It's all about how much."
The state senator, who advocated for a new healthcare lab in Jamaica, was arrested April 2, 2013.
Joe Lhota defended his former boss during a GOP mayoral debate.
The new radio ad is intended to introduce New Yorkers to the Gristedes billionaire .
Guy Molinari has instead endorsed candidate Adolfo Carrion, according to a report.
At least half a dozen candidates are now vying to become the Republican Party's choice for mayor.
Billionare John Catsimatidis launched his bid for mayor Tuesday.
Supermarket magnate John Catsimatidis will officially launch his mayoral campaign Tuesday.
McDonald will be running as a Republican.
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