This combination of pictures created on September 27, 2020 shows Democratic presidential candidate Joe Biden(L) as he speaks outside the Delaware Museum of Natural History in Wilmington, Delaware, on September 14, 2020 and US President Donald Trump speaking to the press as he makes his way to board Marine One from the South Lawn of the White House in Washington, DC on September 24, 2020. / AFP / JIM WATSON AND MANDEL NGAN