Source:
Miami HeraldTALLAHASSEE, 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.
Mack wrote a terse, two-paragraph letter to his one-time protege that said Crist was wrong to veto a bill (SB 6) that would have made it easier to fire teachers and tie their pay to student test scores.
"As you know, I strongly disagree with your veto," Mack wrote his fellow Republican. "Your veto I believe undermines our education system in Florida and the principles for which I have always stood."
Mack went on to say that Crist's decision to veto the bill was "unsupportable and wrong."
Read more:
http://www.miamiherald.com/2010/04/15/1581831/former-sen-mack-withdraws-as-crist.html#ixzz0lDbRMxsb
Sounds like someone wants to campaign for Rubio and sees the writing on the wall about Crist.