Former Gov. David Paterson will step down as the state Democratic Committee chairman, a post he has held since May 2014, Paterson announced on Wednesday morning.

“Today, I am announcing that, after 18 rewarding months, I will be resigning as chair of the New York State Democratic Party,” Paterson said in a statement. “It has been a sincere honor to have held this post and to have played such a central role promoting the Democratic values that are so important to the New Yorkers we serve.”

Paterson was elevated to the post during the state Democratic Convention, when Cuomo replaced Assemblyman Keith Wright, a Manhattan Democrat who shared the job as co-chair with Stephanie Miner, the Syracuse mayor who openly differed with the governor on infrastructure investment, state aid and pension policy.

Paterson that election season was deployed as a foil for the Democratic governor, who at the time was running against Westchester County Executive Rob Astorino.

Known for — at times — speaking off the cuff, Paterson’s tenure as chairman was often on-message.

In his statement, Paterson also praised working with Cuomo.

“I particularly enjoyed working so closely with Governor Cuomo in the run-up to his re-election last year,” he said. “The Governor has been a strong champion for our Party’s shared ideals and I have been proud to answer his call to serve as Chair of the Party. The legacy he is in the process of creating is built on principled and enlightened policies – things like sensible gun control, marriage equality, a higher minimum wage and lower tax rates than any that our State has seen in the past sixty years – that are opening the door to a better future for all New Yorkers.”