This was very bizarre. Hillary looked like she could barely stay awake. That aside, I don’t see why anyone involved in managing the campaign of any presidential candidate - whether it’s Hillary Clinton, Donald Trump, or anyone else - would allow their candidate to appear on a program like this. It was very demeaning.
Then it will come as no surprise that Obama appeared on that show a few years ago. Demeaning the position is one of Obama’s goals.
Part of the shtick of the show is that he makes fun of them while interviewing them; kind of a one man roast without an audience. The celeb interviews are pretty funny.