So Who Is the GOP Mystery Speaker? Palin? Limbaugh? Tebow? Whoever it is gets a plum spot on Thursday By John Johnson, Newser Staff Posted Aug 28, 2012 2:45 PM CDT 91 comments Comments Sarah Palin speaks in Washington in February. (AP Photo/J. Scott Applewhite) (Newser) – GOP convention planners have political bloggers humming with their best guesses on the "to be announced" mystery speaker slotted for about 10pm Thursday. It's a primo spot: Only Marco Rubio and Mitt Romney himself will follow. At the National Review, one name among Republicans who aren't currently on the lineup stands out for Jim Geraghty: Sarah Palin. "The more you think about the idea, the more it makes sense," he writes. "Whatever controversy and intense reactions Sarah Palin may bring to whatever she does, if there is one thing we know she does exceptionally well, it is give convention speeches!" At the Hot Air blog, Ed Morrissey tosses around names including Palin, Rick Perry, Michele Bachmann, and Herman Cain. Plus this one: "As for Rush Limbaugh, well, he does live and work in Florida ..." And at the Daily Caller, Jamie Weinstein thinks Palin is a supreme long shot. His top five: Joe Lieberman, Colin Powell, Nancy Reagan, Clint Eastwood, and Tim Tebow.