when did [Biden] become the frontrunner???
When Bernie won Colorado and Biden won every other state taking Super Tuesday!?!?!?
Biden won the Southern states because
House Majority Whip Jim Clyburn endorsed Biden over Sanders. This was trumpeted as the turning point for Biden to win close states.
OR
did Biden become the frontrunner when he announced on 4/25/19 his candidacy to avoid an investigation due to his Ukraine relationship?
after Biden became the frontrunner on March 3rd. The WHO on:
3/3/20 = Shortage of personal protective equipment endangering health workers worldwide
3/4/20 = “This is unprecedented"
3/5/20 = “The whole government should be involved”
also launched "Be Ready" Campaign = social distancing..leading to lockdowns.
3/11/20 = WHO characterizes COVID-19 as a pandemic
all this is from WHO site:
https://www.who.int/emergencies/diseases/novel-coronavirus-2019/events-as-they-happen