I think middle America will be more willing to vote for a man than a woman, regardless of colour.

As to the video -

The derisive laughter, especially from Hillary, shows how 'catty' and nasty she can be. People who try to make themselves look good by laughing at others, usually succeed in making themselves look foolish. In this case, Obama was very wise not to take offense but to answer with a little wit. Thats the kind of intelligence that is needed in the White House.

Hillary is just part of the old guard who are power hungry and arrogant. She may be very, very politically smart but socially, she is very unconnected to the needs of the citizens. She's been in the ivory tower far too long.