Sen. Rand Paul demolished his competition in the 2014 Washington Times/CPAC presidential preference straw poll on Saturday, winning 31 percent of the vote -- nearly three times the total of second-place Sen. Ted Cruz. Mr. Cruz's 11 percent was still a big improvement for the freshman senator, who won just 4 percent in last year's straw poll. Neurosurgeon Ben Carson was third with 9 percent and New Jersey Gov. Chris Christie was fourth with 8 percent in results that signal growing discontent with the GOP establishment in Washington. Indeed, CPAC voters now have an unfavorable view of Republicans in Congress,...