Brian McKeon, acting chief of staff to Sen. Jeanne Shaheen (D-N.H.), has joined one of the Washington’s top lobby shops, Brownstein Hyatt Farber Schreck.

McKeon was Shaheen’s legislative director before taking over as acting chief of staff last year when the senator’s longtime chief of staff Maura Keefe left temporarily to be congressional liaison for the Hillary Clinton presidential campaign. Keefe has since returned to Shaheen’s office.

Democrats are well positioned to retake the Senate next year, making Senate Democratic aides a hot recruit for lobby firms.

“It’s a great time to be a Senate Democrat and looking downtown,” McKeon said.

He plans to register as a lobbyist and has a one-year “cooling off period” before he can lobby the Senate.

Before joining Shaheen’s office, McKeon previously worked as a senior aide to Sen. Barbara Boxer (D-Calif.) and was a deputy director for voter protection for Obama for America, helping oversee the effort to recruit and organize attorneys to be poll watchers in the 2012 election.

He joins a lucrative lobbying roster at Brownstein, Washington’s second-largest lobby firm by revenue. The firm has earned $13.3 million in lobbying fees so far in 2016 and picked up a number of high-profile hires in recent years, including former Sen. Mark Begich (D-Alaska) and Barry Jackson, a GOP strategist and top aide to ex-House Speaker John Boehner.