"Sorry, I can't tell you whether I'm going to destroy our system of government by effectively ending the separation of powers until after you have voted for me."

Or actually:

"Sorry, I can't I won't tell you whether I'm going to destroy our system of government by effectively ending the separation of powers until after you dumb Democrats have voted for me. You don't deserve to know, fuck you."

Democrats: This is fine.

If Trump said this the media would be non-stop talking about it for weeks, they would have "experts" every day detailing how this is destroying our Democracy. If Biden says it the media looks the other way and puts up some random Orange Man Bad nonsense.

"Sorry, I can't tell you whether I'm going to destroy our system of government by effectively ending the separation of powers until after you have voted for me."

Or actually:

"Sorry, I can't I won't tell you whether I'm going to destroy our system of government by effectively ending the separation of powers until after you dumb Democrats have voted for me. You don't deserve to know, fuck you."

Democrats: This is fine.