In an email and social media post, Jeff Bezos outlined dramatic changes to The Washington Post’s opinions section, and announced that opinions editor David Shipley has resigned.

Washington Post owner Jeff Bezos on Wednesday announced a “significant shift” to the publisher’s opinion page that led David Shipley, the paper’s editorial page editor, to leave the paper.

The Washington Post has been covered in controversy since the decision to terminate a presidential endorsement of Kamala Harris resulted in thousands of subscriber cancellations.