On another answer that is easy to come with a day later, I thought of a cool answer she could have given to the "are you ready to be President on day one. I presume that there is at least one former President who has said "you know, no man is really ready to lead the world's only superpower until they've done it", she could find that quote, and say : You know, Charlie, President X once said that no man is ever really ready to be President until they are already in the office. Of course, "I am no man".
Ha!HA!