I sure hope not. That's the last thing America needs. I'm afraid an atheist president would advocate for getting rid of all Christian symbols from the country, such as the Nativity or the Cross, or the Ten Commandments and while he wouldn't shut churches down, he would actually discourage going to church. He would probably take prayer out of the beginning of each Congressional session.
The day America has an atheist president is the day it begins its downfall.
That said, I don't think it will ever happen. I think Christ will be coming back to earth very soon and if He tarries, He won't allow an atheist president.
Um, I don't know how to respond to something this absurd.
Calling it absurd might be appropriate.