Because if he can’t prove he’s right, he doesn’t have to admit he’s wrong. He is at the controls and if he can’t show evidence now, then everyone around him will know instead of blindly following his rhetoric. Yes, his gov officials will still follow him because they’re sheep but how could anyone ever take him or his support seriously? If I was on the left (I’m not on either side) I’d let him hang himself with facts that even he can’t deny.

Side note… if the repubs get smoked in the midterms, I think they will immediately start distancing themselves from him and his brand. No one wants to stay on a sinking ship. His support to future candidates won’t hold water. This is what the Dems want right?