What if Reagan did?
Your hypothetical is a thinly veiled hit piece implying that Trump would get a higher percent of the vote if he ran as a Democrat and thus must be a democrat. He's not.
But the fact is given a choice between:
I'd choose the democrat. So you know what you can do with your hypothetical.
Sorry. Didn't mean to get your angry, bitter gall raised up. But thanks for your answer.