The U.S. had administered at least one dose to more than 12 per cent of its population as of Friday.
The results gave Biden more than 270 electoral votes, putting him over the top to secure the White House.
Microphones will be muted for the head-to-head showdown in Nashville.
Police fired tear gas at protesters during clashes after cellphone footage showed Jacob Blake shot in the back.
The border has been closed to non-essential travel since March.
Canada is being pressured to take sides, much like it was about Huawei.
Protesters have clashed with troops sent by U.S. President Trump.
Coronavirus cases are skyrocketing in Texas, Florida and elsewhere.
We're nowhere near ready to get back to normal, but on that front, we're not alone during this coronavirus crisis.
The border has been closed to all but essential traffic, goods since mid-March due to the COVID-19 pandemic.