CASTING CALL: With state Sen. Marian Bergeson’s...

CASTING CALL: With state Sen. Marian Bergeson’s appointment as state school superintendent expected today, rumors abound in Republican circles. . . . Bergeson’s coastal district, stretching from Huntington Beach to Laguna Beach, is a Republican’s dream, with solid GOP registration and lots of campaign cash. . . . Newport Beach Assemblyman Gil Ferguson has long expressed interest in the Senate. On Monday, Christine Diemer, director of the Building Industry Assn., offered: “I would certainly look into it.”