Curly Haugland loves the rules..... North Dakota’s top Republican gadfly, its rule-mongering crank, its official state pain in the ass. On the national GOP’s standing rules committee, he’s been the pedantic curmudgeon, the stubborn speed bump who for years has raised points of order only to watch establishment Republicans stampede over him. ... Haugland has become one of the most dangerous men in politics: He’s the mainstream GOP’s last hope to deny Donald Trump the Republican nomination in Cleveland. It would take a miracle—and almost certainly lead to a historic split in the party—but there is still a way, buried...