Rebecca Kirszner Katz is exiting her role as special advisor to New York Mayor Bill deBlasio for a partner slot at Hilltop Public Solutions.

The New York Times called Katz "the primary protector of the de Blasio family's public image."

Joining de Blasio's team in 2009 when he ran for public advocate, Katz is considered "the fifth member of our immediate family," according to the Mayor.

She handled media relations and cultivated deBlasio's cultural profile by arranging for celebrities such as Chris Rock and Louis C.K. to appear at public events at City Hall, according to the Times.

Katz also ironed out appearances for de Blasio on "The Daily Show" and "The Colbert Report."

She says she will continue to offer advice to de Blasio.