Bernie Sanders has caused more concern for Hillary than anyone expected. Let's be real, the main reason Hillary is leading in most polls for Democratic nominee is not because people like her, trust her, believe she's honest or that she cares about them; it's they feel she has the best chance of defeating the Republican.
There is little I agree with Sanders on, but he's genuine, he's far more honest than Hillary.
Hillary is completely scripted, she's a phony. When she's in the south, nobody has a heavier southern twang than Hillary. Then there's Hillary with her black accent. Hillary's accent changes region to region and from ethnic group to ethnic group. People know she's a lying phony. She's low in the polls for honesty, trust and people thinking she cares about them.
Sanders can't be taken lightly, he drew a huge crowd in Los Angeles. People like Bernie, if Democratic voters felt he could beat the Republican candidate, Hillary would be fairing poorly in every major poll.