You know what this is about, don't play dumb. I know defending Trump and his associates keeps getting more and more problematic the longer this investigation continues, but you could always just admit that perhaps the Trumps did something wrong and the investigation is a valid investigation.
btw, the crime I mentioned extends beyond cash donations. It includes any other thing of value. Services as well as goods. And that is just one of the possible crimes at issue in all of this (i.e. conspiracy, false statements, obstruction of justice).