It depends on which doorbell he rang.
If he rang the front doorbell, I would not even know it was he that was out there. I don't answer the front door. All my friends know to go to the side door. Just like Dad had all of us do when we were growing up.
If he were to ring at the side door, if he was without his security detail and nobody knew of his whereabouts... I would like to think I would invite him in and ask him at least a few questions.
One of them being how he would like to be ruled over tyranically. To which I'm sure he would reply that he prefers his freedom. I would tell him that most all Americans would also like to live freely. If he was unsure of my meaning I would then go onto talk about the countrys citizenry being forced into buying into his health care plan.
I would then ask how can a person not currently working is to afford the plan.
I would ask if he truly thought that what he has done for the country has benefitted Joe Lunchbox or Sally Housecoat.
I would also ask why he felt it necessary to "fundamentally change America". And after seeing it, did he still think it was a good idea.
I would also ask if he honestly thought his presidency should be remembered fondly and treated well by history.
We would have a good laugh at the handling of the these last few questions.
Wel,l he would anyway.
I don't believe America needed to be fundamentally changed