A long-awaited Senate report on Hunter Biden's financial dealings with Ukrainian, Chinese and Russian businesses created potential "criminal financial, counterintelligence and extortion concerns," and alarmed US officials who perceived an ethical conflict of interest and flagged potential crimes ranging from sex trafficking to bribery.

The findings are contained in a joint report by the GOP-led Senate Homeland and Government Affairs and Senate Finance Committees, released just six days before the first Presidential Debate between Joe Biden and President Trump.