And I'm thinking Marco Rubio will wait. The Miami Herald:
The U.S. senator has a tough decision to make: does he make a longshot bid and give up his seat or does he run for president and then seek reelection?
Either way, there’s increasing political chatter that Rubio is well-positioned to run for governor in 2018.
And then, if he wins, there’s a good chance Gov. Rubio will run for president — 2020 would be attractive if a beatable Democrat is president. The next presidential year, 2024, an open-seat year, would be more likely. He’ll only be 52.
Even Rubio can figure out, I should think, that against fellow Floridian Jeb Bush, he hasn't much of a chance. Of course Jeb Bush doesn't either, which gives us some idea of Rubio's even worse chances.
If monotonous Marco declines, he will at least gain some distinction for something, which at present he lacks rather impressively: He'll be the only Republican wannabe to pass on this presidential round. The others have nothing to lose.
(I can't leave you without quoting this, also from the Herald: "Insiders say [Gov. Rick] Scott wants to become president."
I knew you'd like that. You're welcome.)