News Wrap: New virus cases down 20 percent since early Aug.

In our news wrap Tuesday, some hopeful news on the COVID-19 pandemic. Johns Hopkins University reports new infections have slowed to 43,000 per day nationwide -- down more than 20 percent from early August. Also, Texas and Louisiana ordered more than half a million people to evacuate the Gulf Coast as Hurricane Laura approaches. The storm already killed dozens in the Dominican Republic and Haiti.