Keith Castaldo, general counsel for New York Senator Kirsten Gillibrand, has joined Subject Matter.
During an eight-year run with Gillibrand, he handled coalition building, business outreach, ethics, workplace policy and campaign finance.
Castaldo also was policy advisor for the short-lived Gillibrand for President campaign.
Prior to joining Team Gillibrand, Castaldo served as an aide to Jersey Rep. Bill Pascrell.
Steve Elmendorf, Subject Matter partner, said Castaldo has been “central to shaping progressive policies for decades and comes with an impressive background in tech, finance and other influential industries.”
Castaldo will join Subject Matter’s government relations team on May 17.