A reporter for the website Mediaite says former White House aide Sebastian GorkaSebastian Lukacs GorkaNikki Haley responds to Gorka: 'I did' tell Trump of concerns about Kelly and Tillerson Jeff Sessions calling Alabama lawmakers about 2020 Senate bid Trump attacks Sessions: A 'total disaster' and 'an embarrassment to the great state of Alabama' MORE told him to “f--- off” in a heated exchange at the Conservative Political Action Conference (CPAC).

Caleb Ecarma, who has called Gorka a "coward" and says the ex-Trump adviser challenged him to a fight in a series of emails they exchanged last year, spoke Thursday with the Fox News contributor at the event at National Harbor, Md., just outside Washington.

In video of the exchange, Gorka appears to shove Ecarma while the two are talking and can be heard calling Ecarma “irrelevant” before walking away.

Ecarma later posted about the exchange on Twitter, alleging Gorka got angry after he asked the former White House aide if he remembered him. 

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Gorka is scheduled to speak on a CPAC panel titled “The Surprising Strength of the GOP in 2018” later Thursday and is set to give an address to the conference on Saturday.

Gorka left his position as special assistant to President TrumpDonald John TrumpRepublicans aim to avoid war with White House over impeachment strategy New York Times editorial board calls for Trump's impeachment Trump rips Michigan Rep. Dingell after Fox News appearance: 'Really pathetic!' MORE in August, roughly a week after former White House chief strategist Stephen Bannon’s departure. 

He was one of Trump’s most controversial advisers, primarily over his alleged ties to Hungarian fascists.