Joe Biden is a placeholder. He was propped up to stop Bernie Sanders from winning the Democrat nomination.
He will magically get a brain tumor, or have some other health issue. He may actually "pass away" also.
They will allow Biden to be criticized and take heat for months and months, then they will slip someone in new who hasn't had one ounce of criticism or vetting.
He will be replaced by Kamala Harris, Hillary Clinton VP or Michelle Obama.Stacey Abrams, someone along those lines.
Then with the fake BLM outrage + Coronavirus hoax they hope to use mail-in cheating/voting to oust President Trump.
He got enough pledged delegates to win the vote at the Dem convention where they officially nominate a candidate. The convention was postponed to August 17th, plenty of time for him to absorb the criticism then take a knee and let them nominate someone else.