The ratings for the second presidential debate weren't able to match the first ddebate's record-setting numbers. According to the Nielson company, the audience for Sunday's face-off at Washington University were down twenty percent from the previous debate. That estimate includes the top broadcast and cable channels, but not all. The full viewership report that includes all the debate coverage should be available soon. Sunday's event is estimated to have had a total of about 60 million viewers. The first presidential debate reached about 84 million.