Donald Trump, who rocketed to the top of the polls in the early GOP primary race, is an unlikely Republican front-runner: a longtime supporter of Democratic politicians with a history of taking views opposed to those of mainstream conservatives. A household name for his reality-television show and his tawdry tabloid history, he has connected with an underappreciated strain of right-wing populists by focusing his fire on a single issue: immigration. In this Broadside, Kevin D. Williamson takes a hard look at the Trump phenomenon and the failures of the national Republican leadership - and defects in our national character - that gave it life. Trump may or may not be in the race for the long haul, but in either case, Trumpism will remain a force.