Bernie Sanders isn’t buying Hillary Clinton’s claim that FBI director James Comey is to blame for her losing the election.

Over the weekend, Clinton refused to take responsibility for her own loss, and instead blamed Comey.

Reuters reported:

Hillary Clinton blamed FBI director James Comey for her stunning defeat in Tuesday’s presidential election in a conference call with her top campaign funders on Saturday, according to two participants who were on the call.

Clinton was projected by nearly every national public opinion poll as the heavy favorite going into Tuesday’s race. Instead, Republican Donald Trump won the election, shocking many throughout the nation and prompting widespread protests. …

Clinton told her supporters on Saturday that her team had drafted a memo that looked at the changing opinion polls leading up to the election and that the letter from Comey proved to be a turning point. She said Comey’s decision to go public with the renewed examination of her email server had caused an erosion of support in the upper Midwest, according to three people familiar with the call.

On Monday morning, Vermont Sen. Bernie Sanders disputed that claim, saying Clinton was, in fact, at fault.

CBS This Morning co-host Charlie Rose asserted Clinton’s team said they had momentum going into the last week and that Comey’s ambiguous letter to Congress put attention back on her email scandal.

Shaking his head, Sanders said, “That’s a minor look. Why should you have to worry about –” he said before being cut off.

“It’s not a question of what happens in the last week,” he continued. “The question is that she should have won this election by 10 percentage points.

“The question is why it is that millions of white working class people who voted for Obama turned their backs on the Democratic Party,” Sanders said.

“And I think a lot of people do not think the Democratic Party is standing with them. That has got to change,” he said.