Sen. Elizabeth Warren told Jake Tapper on Thursday that she believes the Clinton campaign rigged the Democratic presidential nomination process. Early Thursday morning, Politico published a tell-all from former Democratic National Committee interim chairwoman Donna Brazile. In it, she describes a rigged relationship between the Clinton camp and the DNC to ensure that she was the party's nominee.

Asked by Tapper if she agrees "with the notion that it was rigged," Warren replied "yes."

Go deeper: More on Brazile's piece.