Speaker John Boehner and Representative Michele Bachmann have never been close. Now, in the midst of the Huma Abedin flap, the question is whether there will be open hostilities. After Bachmann’s presidential campaign fizzled earlier this year, the Minnesota Republican returned to Capitol Hill unsure of her role in the House Republican conference. She had run and lost a race for a minor leadership post, and her Tea Party Caucus was idle. According to a couple of her friends, it was a personal and political low point. Fox News called sporadically, and a colorful bloc of conservative freshmen — Allen...