Ahead of the U.S. election, sources tell Bloomberg that Facebook is exploring a political ad blackout. The ban would mark a reversal from Facebook chief Mark Zuckerberg’s previous stance on the matter.

Facebook and Instagram currently allow political advertising on their platforms with limited checks against false claims and misinformation. In June, both platforms gave users the option to “turn off” political ads.

A ban on political ads would partially address the recommendations put forward by the Stop Hate For Profit campaign. Close to 400 companies have boycotted advertising on Facebook and Instagram to protest the spread of online hate.

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