Here is the video of last night's debate, which got a bit testy at times.
The purpose of the Sanders' and O'Malley's candidacies is to shape the debate and to keep Hillary Clinton focused. O'Malley will probably get a cabinet position in a Clinton presidency.
Barring outright fraud by the GOP if by some chance Jeb gets the nomination, Clinton WILL be the next president of the United States, flaws or no. The GOP doesn't have anybody who can win fairly, with the sole exception of John Kasich, who the rank-and-file will never nominate.
If anything, she is smarter and more prepared than her husband.
I personally would prefer somebody other than a Clinton or other established name in there, but I'll take her depending on who her running mate is.