They get elected and he drops dead day 2, she becomes POTUS. I have a real problem with that knowing she is a citizen of another country. I cannot see how anyone would be eligible to be POTUS and have dual citizenship.
If Congress was worth a good BM, and they are not, they would fix this. Frankly, there is no one in America age 35 I consider qualified to be POTUS. NO ONE!!!! Fine for 1790, but not now.