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.

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.

The newspaper's billionaire owner announced the opinion section will now focus on “personal liberties and free markets.”