If you have been watching the first weeks of the Trump "administration," as the various new residents of the White House bump around knocking over lamps and federal departments, and thought the problem here is all the leftists, you may be a moron. Or you may be a House Republican. Or you may be both.
Iowa Rep. Steve King was Donald Trump before Donald Trump ever thought of it, when it comes to bizarre theories against immigrants and a head filled with conspiracy theories and/or live bees, so it's not particularly surprising that at the precise same time Trump is inventing new theories about how the scary black president who may or may not have been a real citizen was wiretapping his house for no particular reason Steve King is peddling the Breitbartian, Bannonesque theory that the problem is all the damn leftists hiding in the White House cupboards.
Indeed, Trump's staff started panicking over Secret Leftists Attempting To Steal Their Strawberries last week, after it was leaked that Attorney General For Now Jeff Sessions lied outright to the Senate during his confirmation hearings about whether or not he had met with Russian officials during the campaign. According to the Trump team's logic, only a leftist would care whether or not a prospective attorney general lied to the Senate, and so therefore it must have been a leftist that tipped the press off to that lie.
It makes perfect sense. The Republican Party, and especially the Trumpian wing of the party (is there any other wing, at this point?) is insistent that they are super-geniuses who can do no wrong. If Donald Trump is not being successful, it must be the fault of Secret Leftists. If members of his staff have broken either laws or ethical norms, pointing that out must be a plot from the Secret Leftists. If Americans are not as fond of his ban of Muslim refugees as the racist Steve King personally is, it's because Secret Leftists are goading Americans into opposing it—or paying them to! If Republicans are getting an earful from constituents who do not want the party to gut American healthcare reforms because, as it turns out, a hell of a lot of those constituents were helped in very concrete and life-changing ways by those reforms, then those constituents must not be real constituents, they must be Secret Leftists. All of them. In every meeting, in every city, in every state.
And on and on it goes. The party has internalized the notion that any troubles they face, in any capacity, in any forum, are the fault of invisible liberal opponents. It doesn't enter Steve King's head that perhaps someone might leak information about administration figures breaking the law or being gawd-awful inept at their jobs out of patriotism, because "patriotism" isn't a word Steve King is still familiar with. No, all those suspiciously decent people must be liberals.
So the White House and the rest of the Republican Party are launching an effort to purge secret leftists from government, where secret leftists means, by definition, anyone in government who divulges negative information about a Republican or who accuses a Republican of a crime. Which is a dangerous road to go down and a recipe for authoritarianism, but Steve King is either too dumb to see that or, in fact, intends it.