(CNN) Republican Rep. Steve King once appeared on a far-right podcast that frequently gave a platform to white nationalists and whose host has argued that some races are less intelligent than others.

King, who was just elected to his ninth term in Iowa, took part in a 45-minute interview for the Freedomain Radio podcast, hosted by far-right internet personality Stefan Molyneux in September 2017, a CNN KFile review of King's media appearances reveals.

In the interview, King called the Congressional Black Caucus "the self-segregating congressional black caucus" and said that the group was a "grievance committee" that hijacked Martin Luther King Jr.'s message.

"They more or less hijacked his movement and turned it into their grievance committee and now they're pressing all of us for special benefits based upon race," King said.

King also complained that, because of immigration reform in the 1960s, there weren't as many Irish immigrants as promised, and that instead the United States was experiencing protests at NFL games.