President Trumps long time personal attorney, Michael Cohen, was sentenced to three years in prison for crimes that included arranging hush money payments and tax evasion.

South Dakota Senator John Thune says the entire case is still unfolding….

Thune says the investigation should continue.

Thune says despite evidence of contacts between the Trump campaign and various Russians, collusion has not been proven….

Prosecutors said Cohen will continue to cooperate as he completes his prison sentence.