The ban, he said, revealed Twitter's ``failure'' to create an open and healthy space for what Dorsey calls the ``global public conversation.''

Twitter ended Trump's nearly 12-year run on the platform on Friday.

In a tweet Monday afternoon, Elections Canada said it "does not use Dominion Voting Systems."

Environmental activist Greta Thunberg revived one of Trump's old attacks and used it against him on Twitter.

Twitter hid Trump's tweet behind a notice saying "some or all" of its content "is disputed and might be misleading about an election or other civic process."

"Our teams are working diligently to investigate this activity and will take action in line with the Twitter Rules if Tweets are found to be in violation," a spokeswoman for the social media company said.

The development hands Biden an easy attack line heading into Tuesday's debate.

Donald Trump claimed to have won an award that does not exist, while his campaign misspelled the Nobel Prize name in an ad.

Donald Trump’s real strategy is to suppress voter turnout and discredit the result any way he can, Jackson Proskow says.

Angered by Twitter's decision to place fact-check flags on two of his recent tweets, Trump signed an executive order Thursday authorizing a review of Section 230 of the U.S. Communications Decency Act.