It was never about Trump himself until very recently - which is why so many of us are confused by this line of posting

Until Trump stepped into obstruction of justice - which Comey confirmed Meuller is now investigating - the investigation was about a) Russia interface, and b) did anyone in Trumps CAMPAIGN collude

It was never about TRump himself.  Trump will almost certainly resign or be impeached because of this - but not because he colluded but because he obstructed justice