U.S. Special Counsel Jack Smith, who led the federal cases against Donald Trump on charges of trying to overturn his 2020 election defeat and mishandling of classified documents, has resigned, as the Republican president-elect prepared to return to the White House.

Jack Smith's resignation, 10 days before Trump is inaugurated, follows the conclusion of two unsuccessful criminal prosecutions against the president-elect.

Several months after the January 6, 2021, attack on the US Capitol, FBI investigators began pursuing a tantalizing tip suggesting that Donald Trump had possibly met with members of the Proud Boys, the far-right group that took part in some of the most brutal violence that day,