Trump drew thousands to a campaign rally on Wednesday in Arizona, while Harris (D-CA) drew what appeared to be several dozen.
Three more Democrat governors join CA Gov. Gavin Newsom in saying they will not trust a virus vaccione approved while Trump is in office.
A mass stabbing in the southern French city of Nice was declared a terror attack on Thursday, after an unidentified assailant killed three.
"More research" is necessary to fully determine the protective efficiency of cloth masks against the Chinese virus, a CDC journal noted.