By all means don't stop him from spewing. Our choice here is between this bloviating blow-hard and the tyrannical juggernaut aka the democrat party, personified by HC. Meanwhile the republican establishment cowers in the corner hoping a problem they created after two electoral landslides, will go away. With him it is all words, so far. With her it is real world policies with real world implications.
No need to bring up his business screwing somebody. If he got away with it, the that is a problem with the current system and the powers that be. Kind of the same way Hillary, Lois Lerner and others got away with it. The difference is that their scandals were on a much bigger stage with much bigger consequences.