I say the Republicans may have been behind it, alarmed by the Arizona results.
Why would the Democrats have done it? I think maybe McConnell and Company pushed the idea, and the Rats took the bait.
They figured they could take out two birds with one stone, find something on Trump and make the Rats take the heat for it.
I don't think Mitch is smart enough to think of that. Look at how easy it was for the Rats to bamboozle him on the chips bill.