PHOENIX — Arizona Republicans issued rebukes to three of the party’s most prominent figures on Saturday, approving resolutions to censure Gov. Doug Ducey, former Senator Jeff Flake and Cindy McCain, the widow of former Senator John McCain. Though largely symbolic, the political scolding during a meeting of the state G.O.P. on Saturday underscored a widening rift in Arizona between party officials who have made clear that their loyalty lies with...