"Jeff Bezos and his fellow billionaires accommodate and enable the most acute threat to American democracy—Donald Trump."

"The Washington Post’s billionaire owner and enlisted management are among the offenders," Rubin said in a statement.

One of the most well-known columnists at the Washington Post is leaving with a dig at owner Jeff Bezos and a new mission to focus on what she calls President-elect Trump's "radical agenda." Jennifer Rubin has quit after 14 years to help launch a platform called The Contrarian via Substack.