“[Brian] is skilled in the inside game, has strong policy chops, is a great communicator, builds alliances, and knows how to get things done… He works with a key group of Senate colleagues, who as a group, effectively drive climate action.” 
- President Biden’s Chief of Staff Ron Klain
 
“[Brian is] part of a new generation of environmentalists, and he’s wonderful… He just called to say, ‘Thanks for laying the groundwork.’” 
- Former Sen. Barbara Boxer