Barack, I think, is the first word Jews say when they pray before reading the Torah, and it means "Blessed." He certainly was a blessing, in my opinion. At the start, he saved the auto industries and got us out of a deep recession. He also got tens of millions on health insurance and led the longest period of job or economic growth.
People couldn't even make fun of him for a long time. Not even Saturday Night Live. Even Mitt Romney said not to make fun of him but eventually people did anyway.
Why risk it? Barack Obama still is the anti-establishment - he does smart things and he's not bought - and he has given the scepter to Hillary. Bernie is too good to be true. If Hillary is against your values please don't vote for her, but if you want a Democrat to win I think he is right.