Sen. Mike Lee took aim at President Joe Biden’s nominee to head the Bureau of Alcohol, Tobacco, Firearms, and Explosives, David Chipman, over controversial past remarks the nominee made online.

“It concerns me that you, as the nominee to be the director of the ATF, would have such a flippant and, if I may say so, utterly condescending attitude toward first-time gun owners in this country,” Lee said during Wednesday’s confirmation hearing.