Russian President Vladimir Putin won't congratulate President-elect Joe Biden until legal challenges to the U.S. election are resolved and the result is official, the Kremlin announced Monday.
Putin is one of a handful of world leaders who have not commented on Biden's victory, which was called by major news organizations on Saturday. But President Donald Trump's team has promised legal action in the coming days and refused to concede his loss, while alleging large-scale voter fraud, so far without proof.

