“No American” includes EVERYONE....Trump Jr, Flynn, Sessions, Manafort, Gates, etc etc....
That is exactly what Andrea was probably reaching for, as well.
However, those whom you name are not in trouble for colluding, but for pre-campaign business activities and with Flynn, for lying to the FBI, which is also separate from the Mueller investigation into Trump, as are the other examples.
Sessions was a sitting senator who met (along with his staff as witnesses) in his brief office meeting with a Russian pooh pah. Other senators met with him, as well.
It's becoming clear what the patent absurdity of these charges are really about: a smokescreen behind which the Mueller investigation can announce that there was no Trump-Russia collusion without the left going into complete hysterics.