Republican Presidential Debate in Boulder (29 images)

Sen. Marco Rubio arrives for the third Republican Party presidential candidates' debate at the Coors Event Center on the campus of the University of Colorado on October 27, 2015 in Boulder, Colorado. Fourteen candidates will make an appearance at the third GOP presidential debate on October 28th. Pool photo by Jason Bahr/UPI

(L-R) Dr. Ben Carson, Carly Florin, Sen. Ted Cruz, Gov. Chris Christie, and Sen. Rand Paul applaud during introductions for the third Republican Party presidential candidates' debate at the Coors Event Center on the campus of the University of Colorado on October 28, 2015 in Boulder, Colorado. Fourteen candidates will make an appearance at the third GOP presidential debate. Photo by Gary C. Caskey/UPI

(L-R) Gov. Jeb Bush, Sen. Marco Rubio, Donald Trump, and Dr. Ben Carson applaud during introductions for the third Republican Party presidential candidates' debate at the Coors Event Center on the campus of the University of Colorado on October 28, 2015 in Boulder, Colorado. Fourteen candidates will make an appearance at the third GOP presidential debate. Photo by Gary C. Caskey/UPI

Sen. Ted Cruz waves while arriving at the third Republican Party presidential candidates' debate at the Coors Event Center on the campus of the University of Colorado on October 27, 2015 in Boulder, Colorado. Fourteen candidates will make an appearance at the third GOP presidential debate on October 28th. Pool photo by Jason Bahr/UPI