"I've stressed the importance of mask wearing throughout this pandemic and have tried to lead by example on this issue, but last night I fell short of my own standard," Tillis wrote.
Karen Pence shared stories about members of the military and how both her husband and President Trump have supported the U.S. Armed Forces and their families on a significant scale.
"If you think that a person with a preexisting condition should have access to health care, then you should vote Democrat. We're fighting for that, while (President) Donald Trump and Republicans like (Senator) Thom Tillis are fighting to do away with your coverage."
Harris' afternoon remarks from Washington will be the Democrats' main counter to the president on the final day of the Republicans' convention.
Madison Cawthorn, a North Carolina Republican Congressional candidate with an underdog story, will make history tonight.
"Donald will not rest until he has done all he can to take care of everyone impacted by this terrible pandemic," first lady Melania Trump said.