One problem for Sanders is that he has little support outside the Latte Liberal left wing activist crowd. Obama was able to fuse together the activist base and added on African American support to win the primary. It was a close run thing, he even lost the popular vote.
Blacks and other minorities appear to be sticking with Hillary. Sanders will struggle to break out of the activist base. Atlas and Daily Kos are not even remotely close to the average Democrat.
Well, Bernie isn't considerably more liberal on social issues than Obama or any other typical Democrat. It's economic issues where he mainly differs. I think there's a thirst out there for economic populism, it just remains to be seen if voters will accept someone as far out of the political norm as him.
I think Bernie could appeal to people who are discouraged by politics as usual in Washington and to Democrats dissatisfied by the recovery under Obama. It remains to be seen, however, if he will.
