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 billionaire owner of The Washington Post is directing its opinion section to defend personal liberties and the free market in a shift that prompted the editor of that page to resign

David Shipley, The Post’s opinion editor, is resigning after trying to persuade Jeff Bezos to reconsider the new direction.