He doesn’t need to donate to candidates anymore now that he’s running. If he’s elected, he can sign into law everything he needs passed so that his family can make a killing instead of donating to politicians to make them do it. He doesn’t need to lobby for his special interests while he’s in office and has his phone and pen.
The OP said the donations were ongoing, right now, present tense.
But I can see where a Trump hater would miss the point. You specialize in scrutinizing individual trees while the entire forest burns to the ground.