What is "collusion?"

The following is a comment I made to a post by Gregg Jarrett of Fox News on the Fox News Opinion page.

Thank you, Jarrett, for this explanation. I have been wondering for a long time what this "collusion" was. And what did the Russians do? What was it that was meant to affect the outcome of our elections? Was there, in fact, anything? 

Thinking this over, the only entities that made direct statements about Trump, his campaign, his staff, etc. that was meant to influence the election were MS media, the NYT, and the WaPo. Are they, then guilty of interfering with our national election? Or with the primaries? 

Only one group of persons that I have noticed has tried to overturn the outcome of an election, and that was in the primaries. Consider: the Republican voters cast ballots to elect persons that would be committed to vote for Trump on the first nomination ballot (at least). But they were attacked, pleaded with, and even the targets of death threats by ... the far left and Democrats! They were pushed to vote for someone else (anyone but?) when they were legally elected to be legally bound to vote for Trump. (Aside: well, mostly. There are some jurisdictions that are allowed to change their vote if they wish to, for some reason or other. But that was very few of them.)

So where is the illegality? I sat and listened to Comey tell us all the statutes Hillary had violated in her campaign, and then heard him (an investigator charged with finding out facts) ignore the fact that the statutes don't require any kind of intent, just actions that are proscribed, make a judgment that wasn't his responsibility to make, that she "had no intent to violate the law" and therefore, should not be charged and brought to trial.

So, I say, Trump staffers may have talked with Russian counterparts (which may well be within the scope of their duties they were to assume or had already assumed at that point) but SO WHAT? After all, with tongue in cheek, they were only discussing "their grandchildren."

What a world!