What's the state of the Florida GOP Senate race?

Surprisingly, there hasn’t been much, if anything, on Red State about this.  Erick endorsed Adam Hasner early on. He’s failed to make any headway in the polls, and in fundraising. We’ve had a few others announce, to minimal fanfare, and then, because in politics, as  in nature, a vacuum is abhored, Connie Mack jumped in, and now seems to be the clear favorite.

Is this race all but over? There has been some chatter about Florida Lt. Gov Jennifer Carroll tossing her name in. Are there any others in the weeds? Could Jeb decide to sweep in at the last minute?

Wondering what others think of Mack? Also, who’s likely to run for his House seat?