Word is the Miami Republican will announce today he's not running for re-election. He's scheduled a noon presser at Florida International University to make an "announcement regarding his future" -- his office isn't saying, but sources say he won't run.
That may come as a surprise but not a total shock -- remember the Miami Republican months ago had signaled he'd be willing to retire if Charlie Crist appointed him to the US Senate for a caretaker job?
Word is his brother, Mario Diaz-Balart, will run for Lincoln's seat -- a safer Republican district. That would open up Mario's seat. There's no clear Republican front runner, but David Rivera and Anitere Flores are running for a state Senate seat that is almost fully contained in the congressional district.
And there's speculation the open seat could entice Democrat Joe Garcia to try again. Garcia came close to ousting the younger Diaz-Balart in 2008, but is now working in Washington for the Obama administration.