Former senator Connie Mack must think (or know) that Crist is about to quit the GOP:
TALLAHASSEE, Fla. — Gov. Charlie Crist’s political mentor, former U.S. Sen. Connie Mack, resigned Thursday as Crist’s campaign chairman in his race for the U.S. Senate. …
“As you can understand, I can no longer serve as chairman for your campaign for the United States Senate,” Mack wrote.