Issa was apparently NOT HAPPY with Stewart's bit either.
On another note, I had this letter in my inbox. It's penned by Rep. Darrell Issa to ATF's Deputy Director William Hoover. Apparently the Oversight Committee Chairman is concerned about the agents who testified at the June 15th hearing - John Dodson, Olindo Casa, and Peter Forcelli - being subjected to retaliation by ATF. One of those agents (Dodson) was basically mocked in Stewart's bit on the scandal.
h/t Sipsey Street