Facebook to label all rule-breaking posts - even Trump’s

“The policies we’re implementing today are designed to address the reality of the challenges our country is facing and how they’re showing up across our community,” Mark Zuckerberg wrote on his Facebook page announcing the changes.

Trump threatens Twitter over fact checks: What's next?

Twitter has taken the unprecedented step of adding fact-check warnings to two of President Donald Trump’s tweets that falsely called mail-in ballots “substantially fraudulent” and predicted a “Rigged Election.”