Updated at 6:04 p.m. ET
Twitter CEO Jack Dorsey announced that his social media platform will stop running political ads, citing online ads' "significant risks to politics." Facebook has been criticized for allowing deceptive political ads.
"We've made the decision to stop all political advertising on Twitter globally. We believe political message reach should be earned, not bought," Dorsey tweeted late Wednesday afternoon.
He explained his reasons in a long thread of tweets.