For all of Donald Trump's talk about the "fake news" media and supposedly socialist Democrats, his real focus since leaving office has been to cleanse the GOP of those establishment types who didn't fall into lockstep with him during his presidency. "If we didn't have RINOs, the Republican Party would totally dominate politics," Trump said in a statement via his Save America PAC earlier this month. "The good news is there are far less than there were four years ago—it is a dying breed—but nevertheless, and unfortunately, they still exist!" The latest example of Trump's attempted purge of the establishment...