Bernie Sanders anger at Russel Vought’s statement

Bernie Sanders questioned Russell Vought again about his statement that anyone who denies Jesus as God is condemned and Russell clearly stood tall on what he believes as a Christian. Why did Bernie get so angry at Russell Vought’s statement?

https://www.theblaze.com/news/2017/06/11/bernie-sanders-crushed-for-ruthlessly-attacking-christian-at-senate-hearing-shockingly-ignorant/