That's a bit selective. The tables also show that 63% of black voters want the candidate to be less or equally as progressive as Obama, compared to just 28% of white voters; that 71% of black voters feel that Hillary is trustworthy, compared to 41% of white voters (14% and 41% are the corresponding figures for "not trustworthy"); and 34% of black voters don't think Sanders is ready to be President, compared to only 20% of white voters. Also, the results you've posted aren't quite accurate and are misleading: 28% of black voters know Bernie Sanders and what he stands for very well. A further 49% know him fairly well.
The South Park episode of voting between a giant douche and a turd sandwich continues to stay relevant.
So what's he going to do to overturn Citizens United, which is the actual cause of all this?
I think all those things stack up and create a greater sense of optimism that isn't always necessarily warranted, similar really to when your team's on a great run and you think no-one can stop you. But that isn't always a bad thing either, optimism will possibly make the volunteers work harder, speak for him more passionately, go the little bit extra that they perhaps wouldn't if they knew it was all for a lost cause. Trouble is obviously that the reverse can also happen, the bubble can burst and you're left feeling much worse. One interesting thing I did notice in the numbers was that amongst white voters, Sanders and Clinton scored pretty much identically on whether they were ready to be President. Amongst black voters, it was heavily in favour of Clinton. I suppose the implications of this depend on whether that view is formed before or after you decide who to vote for, it likely changes from person to person, but does suggest that perceived electability is a big factor in the difference and if he could somehow overcome that, he'd make some pretty decent gains.
He's not closing, at least not lately - the same company polled SC before Iowa and Hillary was leading by 22 points, so both are within each other's MoE.
And you think Hillary will raise taxes? Maybe for the middle class not her "high" class
She has an electorate that she must represent, so yes, she'll have to raise taxes on the 1%, if not to the extent Warren of Bernie wants. Donald Trump can walk in the WH, give the middle finger to the gullibles who vote him in and walk out unscathed. It's often pointed out that politicians are influenced by special interests and lobbyists, but they do have to perform a balancing act to keep their office, none of that applies to Donald Trump.
That's why I like him
Equally though most presidents will have very strong support from their party colleagues in the two elected houses... Will the trump be able to carry Republican support - particularly for some of his policies which may be too left for some of the GoP plus the bat shit crazy ideas which surely many career politicians won't want to vote for as they know it will be used against the m in the future.
