Lawmakers are continuing with the certification of Joe Biden's win in the November presidential election after clashes on Capitol Hill during which four people diedbr Proceedings were halted when the complex was overrun by a violent group of President Trump's supporters angry at what they considered to be a rigged electionbr Washington DC is under curfew and police in riot gear continue to guard the streetsbr So far, at least 52 people have been arrested - 47 of them for curfew violationsbr Twitter and Facebook have locked President Trump's accounts, preventing him from being able to post