A key aide to the city’s public advocate, Bill de Blasio, has left her position after only three months on the job.
Gabby Adler, who joined Mr. de Blasio’s staff in December as communications director, left on April 4 to join a “super PAC” in Washington that focuses on Democratic Congressional campaigns.
Ms. Adler’s new employer, House Majority PAC, is considered to be the primary super PAC aimed at aiding the electoral efforts of House Democrats. Its Twitter page describes its mission as “on the offensive against House Republicans’ extreme agenda.”
Mr. de Blasio is a highly vocal opponent of super PACs and Citizens United, the United States Supreme Court opinion that allowed for their creation. He has routinely appeared on national television and at events in Washington to protest the effects of the groups, which can raise and spend unlimited money on candidates’ behalf.
The public advocate was traveling in California with his family on Thursday and could not be reached for comment.
Ms. Adler, whose new position was reported on Thursday by Politico, wrote in an e-mail that the new job “was one I couldn’t pass up.”
“The decision was tough,” Ms. Adler wrote. “My career has primarily been focused on national politics and policy, and with so many Congressional races heating up across the country, I’m excited to put my efforts into winning the battle for a Democratic majority.”
Mr. de Blasio, who is widely expected to run for mayor next year, has one of the smaller staffs among citywide officials. His previous communications director, Matthew Wing, left late last year to join the staff of Gov. Andrew M. Cuomo. Ms. Adler’s position remains unfilled for now.
The new assignment would be a return to familiar ground for Ms. Adler, who previously worked in communications and strategy for various Democratic Congressional campaigns and the House Foreign Affairs Committee. She served as the Midwestern regional press secretary during the 2010 campaign for the Democratic Congressional Campaign Committee. At House Majority PAC, Ms. Adler will coordinate strategy and operations on a number of House races.
