Conservative commentator Glenn Beck called President-elect Donald TrumpDonald TrumpUS gives examples of possible sanctions relief to Iran GOP lawmaker demands review over FBI saying baseball shooting was 'suicide by cop' House passes bill aimed at stopping future Trump travel ban MORE's choice for a top adviser a "nightmare" who has ties to the white nationalist movement.

“You know, if people really want to in the press would like to call Donald Trump a racist, you might want to stop on that one and spend a little time on [Steve] Bannon,” Beck said on his radio broadcast Monday.

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“Bannon has a clear tie to white nationalists — clear tie,” Beck added of the former Breitbart News executive and Trump campaign CEO. "He’s built Breitbart as a platform for the alt-right.

“He’s on record saying that. He’s on record defining the alt-right. He knows what it is. He’s a guy that wants to tear this system down and wants to replace it with a new system.”

Beck said Bannon’s role in Trump’s future administration should inspire fear about the pair’s intentions for America.

“He’s a nightmare,” Beck said of Bannon. "And he’s the chief adviser to the president of the United States now.

“He is a frightening — no, no, no, he is a terrifying man, terrifying man. ... It speaks volumes.”

Trump on Sunday announced Bannon would join his administration as chief strategist and senior counselor, alongside Republican National Committee Chairman Reince Priebus as chief of staff.

“Steve and Reince are highly qualified leaders who worked well together on our campaign and led us to a historic victory,” Trump said in a statement.

“Now I will have them both with me in the White House as we work to make America great again."

Critics from both sides of the aisle on Monday raised the alarm over Bannon’s appointment, citing his ties with the alt-right movement.

Detractors say the far-right ideology glorifies white nationalism, anti-Semitism and discrimination against minorities.

Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonPelosi on power in DC: 'You have to seize it' Cuba readies for life without Castro Chelsea Clinton: Pics of Trump getting vaccinated would help him 'claim credit' MORE frequently cited Bannon while linking Trump with the alt-right movement before losing the presidential election last week.