Even if there were conversations about the campaign with the Russians, “collusion” is not a crime under America’s criminal codes, except in cases of antitrust. There is not a single statute outlawing collaboration with a foreign government in a U.S. presidential election or any election. But these legal distinctions are irrelevant if it never happened.
The special counsel investigating all matters Russia appears to be focusing on Manafort and Flynn. Should Robert Mueller decide to seek an indictment of the pair, the charges will likely have nothing to do with Russian meddling or so-called “collusion.” Their respective business dealings and financial transactions outside the Trump campaign orbit have been under scrutiny for quite some time.