Sen. Elizabeth Warren, D- Mass., says the 2016 Democratic presidential primary was rigged.

Warren’s statement came on the same day that Politico published a book excerpt from Donna Brazile, former interim acting chair of the Democratic National Committee, about her takeover of the committee and her promise to Vermont Sen. Bernie Sanders to investigate its nomination process.

Leaked emails from a Russian hack of a DNC server, made public by WikiLeaks in July 2016, suggested top Democratic officials, including ousted DNC chair Debbie Wasserman Schultz, favored Hillary Clinton over Sanders. Brazile also suggested that Clinton’s campaign was helping to finance the committee, which was facing large amounts of debt.

When asked by PBS NewsHour’s Judy Woodruff whether she thought the election was rigged, Warren said: “I think it was.”

“The process was rigged and now it is up to Democrats to build a new process, a process that really works and works for everyone,” Warren said, adding that .people need to have confidence in the integrity of the system.

“It’s got to have an outcome that really has the confidence of the people,” she said.

Watch Judy Woodruff’s full interview with Sen. Elizabeth Warren on Thursday’s PBS NewsHour.