WATCH: Bernie Sanders’s call to unify behind Clinton ignored by his fans outside DNC

PHILADELPHIA — Vermont Sen. Bernie Sanders tried his best inside the Democratic National Convention to foster unity within the party by closing out the roll call vote nominating Hillary Clinton to be presidential nominee, but outside those secure confines his legion of vocal fans vowed to never back the former secretary of state.
Chants of "hell no, DNC, we won't vote for Hillary," reverberated up and down Broad Street, as Sanders backers banged their signs against the temporary 8-foot tall metal walls separating them from the delegates inside the secure Wells Fargo Center arena zone: