Sen. Elizabeth Warren is calling an email hack of the Democratic National Committee an embarrassment for the party and the country.
The Massachusetts Democrat also said during an interview on Sunday that she doesn't understand why Hillary Clinton has given former party chairwoman Debbie Wasserman Schultz a role in her campaign.
Schultz and other top party officials resigned after emails exposed an apparent lack of neutrality in the primary race between Clinton and Bernie Sanders on the eve of the party's convention.
Clinton has said Wasserman Schultz will serve as honorary chair of her campaign's 50-state program to help elect Democrats.
Warren expressed confidence in longtime Democratic operative Donna Brazile serving as the party's interim chair.
Warren said the party needs someone "to get in there and clean house."