Rand Paul hosted Q&A on Health Care Reform 7/19

Q&A on Health Care Reform - July 19, 2017
https://www.youtube.com/watch?v=5dGcVwnoPK8 (Sound is too low.)
https://www.youtube.com/watch?v=5dGcVwnoPK8

Got some kicking and screaming going on at around 3:30

What is that noise in the background?