"There are differences between Elizabeth and myself," Sanders, I-Vt., said in an interview with ABC News Chief White House Correspondent Jonathan Karl that will air Sunday morning. "Elizabeth, I think, as you know, has said that she is a capitalist through her bones. I'm not."
The statement comes as Sanders, whose Democratic Socialist ideologies positioned him as Hillary Clinton's chief progressive rival in 2016, has found himself overtaken by Warren in the majority of national and early state surveys in recent weeks, leading to questions -- particularly in the aftermath of the heart attack he suffered last week -- about the viability of his 2020 campaign in a very crowded field.
You can watch a snippet where the quote can be found here: