It's Day 1 for the Democratic National Convention, and so, the gathering in Philadelphia has gotten off to a rocky start.

The Associated Press reported:

"Angry Democrats heckled outgoing party chief Debbie Wasserman Schultz with boos and cries of "shame!" on Monday as the party tried to recover from an embarrassing email hack that ripped open primary wounds just hours before they planned to mount a four-day showcase of unity. Hours before she was to gavel in the Democratic National Convention, the Florida congresswoman was met by raucous activists who accused her of favoring Hillary Clinton over vanquished rival Bernie Sanders. Activists jeered and waved signs reading "Thanks for the 'help,' Debbie," and more simply, "E-mail." Her supporters shouted them down, as Wasserman Schultz appealed for comity."

The email scandal this time for Democrats was one involving the Democratic National Committee, of which Wasserman Schultz is the chairman. Emails leaked by WikiLeaks showed a decided preference for Hillary Clinton's campaign over Bernie Sanders.

The convention could be contentious this evening on the night when Elizabeth Warren, Michelle Obama and Sanders are set to speak.