One particular area of concern is the relative share of ballots cast by young voters of color and less-reliable Democratic voters. Part of the problem, according to interviews with a dozen Democratic elected officials and operatives, is the Biden campaign‘s decision to discourage field staff from knocking on doors during the pandemic and its subsequent delay in greenlighting — and funding — a return to door-to-door canvassing.

“We did not get the kind of funding for different vendors who would do that type of work until late in the campaign,” said Rep. Frederica Wilson, a party institution who represents Miami’s heavily Black congressional district.

Wilson said the good news is that Biden’s running mate, California Sen. Kamala Harris, is working with her on a turnout event for this weekend geared toward young Black men. But the veteran congresswoman said there are still skilled operatives in her district who excel at turnout work who have yet to get approved by the campaign, a puzzling delay for an operation that raised a record $363 million the month before.