Voting in the straw poll began Friday and will continue Saturday. Results will be announced Saturday evening.
The candidates are: Former House Speaker Newt Gingrich, former Arkansas Gov. Mike Huckabee, former New Mexico Gov. Gary Johnson, former Alaska Gov. Sarah Palin, Texas Rep. Ron Paul, Minnesota Gov. Tim Pawlenty, Indiana Rep. Mike Pence, former Massachusetts Gov. Mitt Romney and former Pennsylvania Sen. Rick Santorum.
At least four potential 2012 candidates are not featured on the ballot - Mississippi Gov. Haley Barbour, Texas Gov. Rick Perry, Louisiana Gov. Bobby Jindal and South Dakota Sen. John Thune - and no space is provided to write in a candidate.
Jindal removed himself from the 2012 chatter on Friday, telling the SRLC crowd: "I am not running for president of the United States."
Perry, in the midst of a re-election campaign in Texas, asked for his name to be kept off the ballot, an aide to the governor told CNN.