Biden Has an Edge on Trump. So Why Are Democrats Worried?

In his first weeks as the presumptive Democratic nominee, Joe Biden went days at a time with no public events. His campaign staff in early April was about half the size of Hillary Clinton's at the same time in 2016. A much-touted virtual rally last week was riddled with glitches. And Biden and his advisers remain stuck at home, uncertain if their Philadelphia headquarters will ever reopen.Less than six months before Election Day, Biden finds himself in an extraordinary position: Party leaders ha