A C-SPAN caller on Tuesday tore into former White House adviser Sebastian Gorka Sebastian Lukacs GorkaSunday shows preview: Trump, lawmakers weigh in on COVID-19, masks and school reopenings amid virus surge Trump taps Gorka for national security advisory board Sunday shows preview: Coronavirus poses questions about school safety; Trump commutes Roger Stone sentence MORE and other current and former Trump aides as "treasonous bitches."

“Mr. Gorka, I just really look forward to when you and Corey Lewandowski Corey R. LewandowskiTrump faces tricky choice on Supreme Court pick How Trump can win reelection: Focus on Democrats, not himself Trump Jr. distances from Bannon group, says he attended 'single' event MORE, David Bossie and [Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE], Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE, all of you are exposed for the treasonous bitches that you are,” a caller said as Gorka appeared on "Washington Journal."

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The host, Pedro Echevarria, quickly dropped the call and apologized to Gorka, who promptly responded to the attacks by labeling the caller "un-American."

"Why is that man on the Democratic line?" Gorka asked. “Why is there such hatred out there? It’s just un-American."

Gorka added that President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE was "duly elected" and that "people need to get over the fact that we have a republic."

"This level of hatred [is] not good for the health of the republic," Gorka said.

Gorka, who worked as a special assistant to the president, left his position in the White House about a year ago. Since then, he's been a frequent guest on networks such as Fox News and has repeatedly voiced support for Trump's agenda.

Just days ago, C-SPAN was forced into a 7-second delay after caller used a racial slur against former President Obama and called for his death.

C-SPAN has dealt with multiple other incidents involving callers making controversial statements. Earlier this month, the network was forced to alert the FBI after one caller appeared to threaten CNN host Brian Stelter and CNN anchor Don Lemon.

“They don’t even know these Americans out here and they are calling us racists because we voted for Trump?” the caller said. “Come on. Give me a break. They started the war. I see them. I’m going to shoot them.”