[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/08/19/art.crist.0819.jpg caption="Two Florida Republicans dropped their endorsement of Crist."]
Washington (CNN) - Two prominent Florida Republicans have pulled their support for Gov. Charlie Crist's bid for the Senate.
Brothers and Reps. Lincoln and Mario Diaz-Ballart, who officially backed Crist in July, are no longer on the Senate hopeful's official list of endorsements. Lincoln Diaz-Balart told the Miami Herald that they made the decision weeks ago.
"We take our endorsements seriously, but the governor knows why we withdrew, and he left us with no alternative," Lincoln Diaz-Balart told the Miami Herald on Tuesday.
This is the latest setback for Crist, who has been hammered by conservatives in recent months. Crist once held a comfortable lead in polls over opponent Marco Rubio - but going into 2010, he faces bruising battle for his party's nod.