According to Trump advisor Michael Cohen, "Donald J. Trump will be making a major announcement tomorrow at 12:30 p.m. at Trump International Hotel & Tower, Las Vegas, Nevada... The announcement will pertain to the Presidential race."
Gingrich enters the Nevada Caucus after getting beat by Mitt Romney in Florida. He has spent the day campaigning in Reno.
Update 2: Epic fail. The Titanic - against all odds - has sunk. We misunder-reported. The Ultra-Donaldest Maxi-Trumpalicious Uber-PsuedoMogul-Entity endorsed Mitt Romney. This, of course, is great news for Barack Obama!Last year, Trump decided not to run for the GOP nomination after attacking President Barack Obama over the validity of his birth certificate.
Update: "I don't know of anybody who does a better job of getting attention by announcing that he will presently announce something," Gingrich told the AP.