Ruth Marcus, a longtime op-ed writer for the Washington Post, quit on Monday after, she said, her column criticizing owner Jeff Bezos was killed by publisher.

Ruth Marcus, who recently resigned as a Washington Post columnist after four decades, said she parted ways with the paper following a spiked opinion piece on the paper’s billionaire owner because her job is to tell readers “what I think,

During her four-decade-long career at the Washington Post, the left-leaning Marcus has covered legal affairs, politics and policy.