Democrats and mayors escalated their calls Tuesday for federal law enforcement to withdraw from Portland, but if they did, Acting Homeland Security Secretary Chad Wolf said violent mobs would raze the federal courthouse — and local authorities would do nothing to stop them. “What we know is that if we left tomorrow, they would burn…

President Donald Trump has resumed a starring role in the White House’s coronavirus briefings on Tuesday, returning to the podium in the press briefing room in hopes that he can shore up support for his administration’s work amid flagging poll numbers.Trump says the administration is doing well with vaccine and therapeutic development.He says the country…

Houston Mayor Sylvester Turner speaks at free COVID-19 testing provided by United Memorial Medical Center at the Mexican Consulate Sunday, June 28 in Houston. David J. Phillip/AP hide caption toggle caption David J. Phillip/AP Houston Mayor Sylvester Turner speaks at free COVID-19 testing provided by United Memorial Medical Center at the Mexican Consulate Sunday, June…

Blood vials. Photo: Getty Images/Science Photo Library As scientists around the world have raced to understand COVID-19, the general public has been inundated with a flurry of early studies and ensuing recommendations, some of which have been contradictory, leaving us with “coronavirus whiplash.” A recent source of confusion has been the relationship between the coronavirus…

A 13-year-old California teen died with symptoms of coronavirus last Thursday after he tested negative for the virus, CBS affiliate KCBS-TV reported. The family told KCBS-TV that the teenager seemed to recover from his symptoms before he died in his bedroom, self-isolating from his family. An autopsy will determine whether Cheng died of coronavirus, KCBS-TV reported. Visit Business…