Update: Pawlenty has indeed announced he is forming his “Presidential Exploratory Committee”, which is code for: “Yeah, I’m in. Book it.”

Tim Pawlenty has announced that at 3:00 pm on his Facebook page, he will be delivering a “special message”.

Will he be the first to officially declare for the race? If so, how quickly do the dominoes fall? Which other candidates will quickly jump in to keep T-Paw from capturing all the headlines?