The billionaire owner of The Washington Post, Jeff Bezos, narrowed the topics covered by its opinion section Wednesday to defending personal liberties and the free market, a pivot away from the traditional broad focus and prompting the news outlet’s opinion editor to resign.

Jeff Bezos stated that while the paper would continue to cover a wide range of topics, viewpoints opposing pillars he listed would no longer be featured.

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.