Of likely GOP caucus goers: Scott Walker 19% Ben Carson 13% Jeb Bush 11% Marco Rubio 9% Mike Huckabee 8% Rick Perry 7% Ted Cruz 6% Rand Paul 5% Chris Christie 3% Carly Fiorina 3% Rick Santorum 2% Donald Trump 2% Lindsay Graham 2% Bobby Jindal 2% John Kasich 2% George Pataki 1%