538.com says Crist may end “pulling out his hair” over decision.
John Cornyn says Martinez’s resignation “does not change the landscape.”
Michael Barone says it should be Jeb Bush.
HuffPo speculates Martinez resigned to screw Crist.
Red County says it should be Marco Rubio.
Susan MacManus is unsure.
Kendrick Meek is magnanimous.
New York Times suggests Clay Shaw.
Not One Red Cent weighs in.
Palm Beach Post has quotes from just about everyone.
Larry Sabato thinks Crist has an opportunity.