ELIZABETH COHEN, CNN SENIOR MEDICAL CORRESPONDENT: That's not as reliable as a clinical trial but it certainly does sort of, you know, keep some hope that maybe this drug is useful in certain patients.</s>JAKE TAPPER, CNN HOST: Elizabeth, another new study finds that blood from the very sickest COVID patients might make for the most effective convalescent plasma treatment. Why?</s>COHEN: You know what, because the sicker you get, the strongest response your body has to form. If you're very sick, your immune system really has to kick into gear. So, let's take a look at what this study found, because this has been a big question, is convalescent plasma the same from person to person? And it's apparently not. They looked at 126 survivors. 80 percent had detectible, neutralizing antibodies. That's what they're looking for. So, in other words, 20 percent weren't even useful, and that's good to know. The patients who were the best were older, male and hospitalized. And that is sort of a way of saying the patients who were the best were the ones that were the most sick.</s>TAPPER: All right, Elizabeth Cohen, thank you so much. Important information. What if you wake up on November 4th with no clear winner in the presidential contest and a category 5 tweet storm from President Trump? Well, the man who run political advertising for Twitter says it might be time to mute the President for democracy's sake. We'll talk to him. Plus, breaking news in our POLITICS LEAD. Stick around and I'll tell you what it is.
Study Shows Anti-Inflammatory Drug Can Reduce Risk of Death in Critically ill COVID Patients