Russian President Vladimir Putin said on Sunday that he saw nothing criminal in Hunter Biden's past business ties with Ukraine or Russia, marking out his disagreement with one of Donald Trump's attack lines in the U.S. presidential election.

With nine days before Election Day, more people already have cast ballots in this year's presidential election than voted early or absentee in the 2016 race as the start of in-person early voting in big states led to a surge in turnout in recent days.