Desparate attempt to get the guy for something.
The guy himself (Paul Manafort) IS a Russia-colluding slime ball. But what he did on behalf of Putin was years before he joined Trump. Can’t understand why they selected him, or Flynn, in the first place, to be on the team, given their Russian connections. I suspect Trump was naive on the situation before he was wisely informed later on in the campaign by folks like Pence.