Sports Joe Biden ‘proud’ of way Sha’Carri Richardson handled positive marijuana test, but ‘rules are rules’ July 4, 2021 Chris Bumbaca, USA TODAY Comments Off on Joe Biden ‘proud’ of way Sha’Carri Richardson handled positive marijuana test, but ‘rules are rules’ Joe Biden was asked about Sha'Carri Richardson, whose positive test for marijuana will prevent her from competing in Tokyo Olympics' 100-meter dash.