Republican presidential primary candidates fifth debate held in Las Vegas

Republican presidential primary candidates fifth debate held in Las Vegas

(L-R) John Kasich, Carly Fiorina, Marco Rubio, Ben Carson, Donald Trump, Ted Cruz, Jeb Bush, Chris Christie and Rand Paul assemble for a photo-op prior for the fifth Republican Party presidential candidates' debate at the Venetian Hotel & Casino in Las Vegas, Nevada on December 15, 2015. The top 9 candidates squared off in the first-tiered debate on the main stage. Photo by Jim Ruymen/UPI