Signing on for the primary were a pair of Democrats - Illinois Sen. Barack Obama and New Mexico Gov. Bill Richardson - and three Republicans that included former Tennessee Sen. Fred Thompson, Colorado Rep. Tom Tancredo and Alan Keyes.
Clinton registered for the Beehive State primary on Wednesday. She was preceded by former Sen. John Edwards, Texas Rep. Ron Paul, Sen. John McCain, ex-Arkansas Gov. Mike Huckabee, former New York City Mayor Rudy Giuliani and Romney, the ex-Massachusetts governor and CEO of the 2002 Salt Lake City Winter Olympics.