Economist and author Thomas Sowell told “Life Liberty & Levin” in an interview airing Sunday evening that the left’s claim that America is beset by “systemic racism” has no definitive meaning and cannot be “tested” in any empirical manner.

“You hear this phrase, ‘systemic racism’ [or] ‘systemic oppression’,” host Mark Levin told Sowell. “You hear it on our college campuses. You hear it from very wealthy and fabulously famous sports stars. What does that mean? And whatever it means, is it true?”

“It really has no meaning that can be specified and tested in the way that one tests hypotheses,” answered Sowell, who added that the currency of the phrase reminds him of the “propaganda tactics” of Nazi Germany, where Sowell claimed that if a lie was “repeated long enough and loud enough” it would be widely beleived.