If there’s “fruit of the poisonous tree” tainting the Mueller probe, it comes from a tree planted by president Donald Trump. The phrase is catchy, however, even if it’s completely inapplicable during the course of an investigation. Once a trial, or proceeding, has commenced, and evidence introduced, a defendant, then, may object that any proffered evidence was illegally, or improperly, obtained. Until evidence is introduced admissibility isn’t an issue. It’s no surprise, though, that Trump will say, or do, anything to impede the investigation into Russia that may touch him, personally.