According to the advocacy group's spokesperson, Common Cause learned on Friday that the Post would not run the ad criticizing Musk. This decision comes after the Post received widespread backlash for not endorsing a political candidate during the 2024 presidential election, and its owner, Jeff Bezos, openly supported President Donald Trump.

X's pool of advertisers is growing, but it's far from recouping the revenue lost in the ad exodus following Musk's 2022 takeover.

The Washington Post this week backed out of a “Fire Elon Musk” advertising order that was to run as a wrap on some of its Tuesday editions, according to the advocacy group Common Cause.