It's opening night at the Democratic Convention. And what was supposed to be Hillary Clinton's sparkly coronation is turning into a bit of a nightmare.
For even as Clinton prepares to accept her party's nomination, what was supposed to be a show of unity, and a bright contrast to Donald Trump's dark and divisive rally, is threatening to become a noisy show of disunity.
With the fate of the convention, and maybe her own fate, in the hands of the man she defeated.
