By Will Drabold
July 25, 2016

The Democratic National Committee apologized to Bernie Sanders after leaked emails showed former Chair Debbie Wasserman Schultz and top DNC officials criticizing the Vermont Senator’s campaign during the primary.

The emails, released by WikiLeaks, came shortly before the Democratic National Convention, which kicked off Monday in Philadelphia. On Sunday, Schultz said she would resign after the convention, where she will not speak.

“On behalf of everyone at the DNC, we want to offer a deep and sincere apology to Senator Sanders, his supporters, and the entire Democratic party for inexcusable remarks made over email,” the statement reads. “The DNC does not — and will not — tolerate disrespectful language exhibited toward our candidates.”

The apology comes as Sanders delegates booed the Vermont senator when he spoke about party unity earlier on Monday and later booed references to Clinton as the convention formally began. Delegates also shouted Sanders’ name during the convention’s opening prayer and repeatedly interrupted the convention’s opening proceedings. On Sunday, Sanders called for Schultz’s resignation over the emails.

“I am going to be respectful of you,” said Ohio Rep. Marcia Fudge, permanent chair of the Democratic convention, around 4:45 p.m. in Philadelphia as the crowd jeered and cheered. “And I want you to be respectful of me. We are all Democrats, and we need to act like it. Let’s do it!”

Read the DNC apology to Sanders in full below:

Contact us at editors@time.com.

SPONSORED FINANCIAL CONTENT

Read More From TIME

EDIT POST