So here is my take. Based on this:

"The term “collusion” is defined as “concerted activity toward a common purpose.”[2] The colloquial connotation of the word indicates that people who “collude” have worked together, usually in secret, to do something illegal. Still, other than in an antitrust context, “collusion” is not the name of a crime. (In antitrust law, two product sellers who conspire to set the price for goods may be guilty of “collusion,” but that is obviously not relevant here.) Former federal prosecutor Andrew McCarthy recently wrote that “collusion is a hopelessly vague term.”[3] There is no federal law that criminalizes collusion between a political campaign and foreign government. Even though “colluding” with a foreign government, especially one as hostile as the Russian government may be inappropriate or politically damaging, it’s not illegal. In this sense, collusion is viewed as a political term and not a legal term. As a result, Trump Jr, Manafort, and Kushner could not be prosecuted under a charge called “collusion.”

Collusion isn't even a crime. So when Trump is finally "cleared" of this and then if the same charge is brought against Hillary, the "FAKE NEWS" will then say that "collusion isn't a crime"…