Main speakers Tuesday at the DNC:

Donna Brazile is the party's interim chair and has been a contributor to CNN's political coverage. She was also the campaign manager for former Vice President Al Gore during the 2000 election that he lost to President George W. Bush.

Jason Carter is a former state senator from Georgia and the grandson of former U.S. President Jimmy Carter. He ran for governor of Georgia in 2014 but lost to incumbent Nathan Deal.

Nancy Pelosi is the leading Democrat in the House of Representatives. She has represented her district in California since 1987, and in 2007 she became the first woman to be the speaker of the House.

Bill Clinton was the U.S. president from 1993 to 2001 and is Hillary Clinton's husband.

Mothers of the Movement is a group of mothers whose children have died in gun violence or in clashes with police. They appeared in a video released by the Clinton campaign highlighting the need for gun violence prevention and police reforms.