https://www.vice.com/en_us/article/pkdq7y/trump-is-permanently-suspended-from-twitter

Twitter has permanently suspended the account of President Trump, after he repeatedly spread false claims about losing the election, and Trump supporters stormed the Capitol building.

The move is the conclusion of years of Trump being able to use the social network as a megaphone for dangerous conspiracy theories, targeted harassment, and incitement of violence. It comes after Facebook made a similar move earlier in the week, with Facebook "indefinitely" locking Trump's account until at least the peaceful transfer of power is complete.