And yes, I am making some assumptions here about your daughter's situation. The veep could have been a widower; divorced for years before meeting your daughter; the victim of an abusive wife; etc.
Let's just say I stand by my first statement, even if it doesn't apply in your daughter's case.
I had the ame reservations about the man before they were married. It does seem to be going well, though. If you see the two wives in the same room, they look almost identical. I don't know what broke up their marriage, but I do know there are lots of divorces, and I wouldn't want you to write me off because I left a bad man. In the end, it is my daughter's life, and she is firm about that.