Romney is sweating what this "announcement" will be.

Quote:
Mike Huckabee, the former governor of Arkansas, will announce on Saturday whether he will run for president, the producer of his show on the Fox News Channel said Friday.

“Governor Huckabee will announce tomorrow night on his program whether or not he intends to explore a presidential bid,” Woody Fraser, the executive producer of “Huckabee” said in a statement. “He has not told anyone at FOX News Channel his decision.”

Senior political aides to Mr. Huckabee also said Friday they do not know what he will decide, raising suspicions that Mr. Huckabee will take a pass on another campaign.

source: NYT