A STRANGE COMPARISON -- "Marco Rubio's big problem--and his party's," by The Washington Post's Paul Waldman: "Believe it or not, the Iowa caucuses are just over a month away. And Sen. Marco Rubio (R-Fla.) -- establishment darling and the cognoscenti's assumed front-runner -- is heading to Iowa for a bus tour, bringing along a shiny new endorsement from Rep. Trey Gowdy of South Carolina, head of the special committee on Benghazi. Can you feel the excitement? Probably not, which is why this is an excellent demonstration of Rubio's problem, and the problem the GOP is facing as the actual voting...