Donald Trump's Twitter account was reinstated Saturday after the platform's new owner Elon Musk ran a poll in which a narrow majority of voters supported the move, days after the former US president announced another White House bid.

Trump was banned from the platform early last year for his role in the January 6 attack on the US Capitol by a mob of his supporters seeking to overturn the results of the 2020 election.

"The people have spoken. Trump will be reinstated," Musk tweeted, shortly after the 24-hour poll ended. "Vox Populi, Vox Dei," he added, repeating a Latin adage he posted Friday meaning "the voice of the people is the voice of God."

More than 15 million people -- out of 237 million daily Twitter users -- voted on whether to reinstate the controversial profile, with 51.8 percent in favor and 48.2 percent against.