De Blasio, center, & Walzak, to the mayor's right (Rob Bennett/Mayor's Office)

There are few people Mayor Bill de Blasio trusts when there is a lot on the line. One of those people, Phil Walzak, has been a top aide to the Democratic mayor since de Blasio’s 2013 campaign, for which Walzak was communications director. This past week, de Blasio’s reelection campaign announced that Walzak is moving from City Hall -- where he had been de Blasio’s press secretary then senior advisor -- to the campaign.

When it comes to a Mayor