Cuomo has repeatedly been mentioned as a possible presidential candidate in 2016.

Recently, the New York governor denied that he had secretly said he would not run for president if Hillary ClintonHillary Rodham ClintonClinton defends April Ryan, Rep. Maxine Waters in speech Lobbying world Trump puts foreign investors first by supporting the Republican tax plan MORE, another possible candidate, decides to jump into the race.

Cuomo has strongly resisted discussing possibly running for president in 2016, but Diamond's hiring will likely reinforce rumors that Cuomo is preparing to run for president.