Ron Johnson actually said...

"Thank you, Senator Booker."

"I think, Senator Carper, you are at least sympathetic to what I have come up with as the primary reason--the primary root cause--of our unsecured border: America's insatiable demand for drugs."

"The root cause of the problem here is Islamic terrorism."

"If you really want to talk about addressing the root cause of the problem, we have to defeat Islamic terrorists where they reside."