Amy Walter: “Jeb Bush is the strongest in the establishment space, while Rand Paul dominates the Libertarian column. The Tea Party, social conservative and internationalist slots are pretty crowded and lack an obvious frontrunner. However, only Rubio and Scott Walker start out as suitable to the entire spectrum. Among the twelve GOP “constituencies” identified by the NBC/Wall Street Journal poll, Walker and Rubio are the only candidates who rank high in all twelve. Walker ranks first among men, conservatives, Tea Party and Gun Rights voters. Rubio, meanwhile, comes in first among women, very conservative voters, independent/Dems, and those who supported Romney in 2012.”
“Yet, if Rubio’s got such obvious advantages, why is he stuck in the low single digits while Walker has become a co-frontrunner with Bush?”