California political kingmaker Will Brown made a surprise endorsement in the governor’s race — throwing his support behind billionaire Tom Steyer. Brown, the former mayor of San Francisco, said in a statement that he’s known Steyer “for many years” and praised his ability to lead. Mayor Willie L. Brown CBS via Getty Images “I’ve seen how how he brings a deep understanding of complex issues, a disciplined approach to learning and decision making, and a clear commitment to leading with principle and purpose to everything he does,” Brown said. “California needs a governor who is fully informed, independent in thought, and focused on what serves the public best,” he continued, “and I believe Tom Steyer embodies those qualities and offers real benefit to the state’s future.” Steyer shared a video on X featuring Brown hailing the candidate for his “brain power” and independence. “I am grateful for Willie Brown’s confidence as we work to move the state forward,” Steyer wrote.…