teetering on the edge of a stay-at-home order. le. >> we are teetering on the border of going to red. it is up to all of us to make sure that we don't. >> reporter: and tonight, with temperatures feeling like triple digits across the south and west, the battle against the virus growing more brutal. more people are escaping the heat indoors, where the risk of spread is higher. and some testing site hours now changed after painfully long waits. there is not a single appointment available in the entire city of l.a. at any one of these testing sites. and now california public health officials are admitting that the results are taking so long, it is making contact tracing impossible. dallas, texas, taking over one testing site from the federal government after results were taking 8 to 10 days. >> that's way too long.people c nearly two weeks waiting aund for answers.ay. goor aa preren>> y aadin over 4,000 people have died, and you are blaming the protesters.