Fresh off his visit to the early voting state of Nevada, there's yet another sign that Mayor Bill de Blasio is gearing up for a presidential run.

NY1 learned Monday that the mayor's communications director, Mike Casca, is leaving City Hall to work as a spokesperson and strategist for the committee funding the mayor's trips.

Starting Monday, Casca will move into his role in the Fairness PAC.

• De Blasio is Using a PAC to Flirt with a Presidential Run. It Had a Different Original Purpose.

Casca first joined de Blasio's staff in 2017, after he served on Bernie Sanders's 2016 campaign team.

And he's not the only one moving on; the mayor's Intergovernmental Affairs Director, Jon Paul Lupo, is also leaving to work on the potential campaign.

But while they stay in de Blasio's circle, another top aide is moving to the private sector: the mayor's press secretary, Eric Phillips, announced that he'll be leaving the administration. Freddi Goldstein will move from Deputy Press Secretary to Press Secretary.

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