This is breaking from CNN. Senator Mel Martinez has resigned.
UPDATED
CNN Politics
Senator Martinez had previously said he was not running for reelection in 2010. Governor Charlie Crist(R) is running for the seat Martinez will vacate. But now we learn Martinez has resigned his seat today. One can only wonder what is really going on there. Whatever is going on, let me be one of the first to say, good riddance.
Governor Crist will now appoint someone (himself maybe) to finish Martinez's term.
I'll post more as news comes in.
Thanks to aimeeinKC for providing this link to Politico.
Politico story
Also Faux news is now confirming as well.
So long Mel, and good riddance.