LAS VEGAS (AP) — A slate of potential Republican presidential candidates is descending upon Las Vegas to court one of the GOP's most powerful patrons. Republican super donor Sheldon Adelson is the main attraction for White House hopefuls as the Republican Jewish Coalition begins its annual "spring leadership meeting" Thursday along the city's storied strip, the site of Adelson's Venetian resort hotel and casino. [...] being called "the Sheldon primary," the four-day event features Scotch tastings, private roundtable discussions, and golf and poker tournaments that bring together politicians and some of the GOP's top money men, a powerful list Adelson leads. Charlie Spies, who led the super PAC that backed Romney in 2012, said Adelson and his wife are generous philanthropists that back causes ranging from educational to pro-Israel to political. "The governor remains focused on 2014 and sharing his common-sense conservative message with like-minded leaders," Walker campaign spokeswoman Alleigh Marre said.