Hillary Clinton‘s new book What Happened will be released next week, but numerous excerpts from her tell-all from the 2016 election have been shared, including one about her Democratic primary rival, Bernie Sanders.

Tom Watson tweeted this page from her book.

Wow – “I am proud to be a Democrat and wish Bernie were, too.” #ShePersisted pic.twitter.com/jSv7ilP5Nv — Tom Watson (@tomwatson) September 4, 2017

She took aim at Sanders for “impugning” her character during the primary, which she believed ultimately helped Donald Trump win in the election.

“Because we agreed on so much, Bernie couldn’t make an argument against me in this area on policy, so he had to resort to innuendo and impugning my character,” she wrote. “When I finally challenged Bernie during a debate to name a single time I changed a position or a vote because of a financial contribution, he couldn’t come up with anything. Nonetheless, his attacks caused lasting damage, making it harder to unify progressives in the general election and paving the way for Trump’s ‘Crooked Hillary’ campaign.”

Clinton expressed appreciation for the Vermont Senator for campaigning for her during the general election, but she also expressed her frustration that he himself wasn’t a Democrat to begin with and accused him of not necessarily wanting a Democrat to win the White House.

“But he isn’t a Democrat- that’s not a smear, that’s what he says,” she continued. “He didn’t get into the race to make sure a Democrat won the White House, he got in to disrupt the Democratic Party.”

She said Sanders was right that Democrats “needed to strengthen [their] focus on working families” and she gave him credit for engaging “a lot of young people in the political process,” but he was “fundamentally wrong about the Democratic Party.” She went on to tout accomplishments under Democratic presidents Franklin D. Roosevelt, Lyndon B. Johnson, Jimmy Carter, her husband Bill Clinton, and Barack Obama.

“I am proud to be a Democrat and I wish Bernie were, too,” she said.

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