White House deputy assistant Sebastian Gorka elaborated to Fox News host Sean Hannity on Friday night about why he is so aggressive during his appearances on MSNBC and CNN, saying that "someone has to be the president's pitbull."

Hannity asked Gorka what made him decide to go into the "dark corners" of the media with Trump's message.

"We've got beautiful, intelligent women like Kellyanne [Conway]," Gorka responded. "We've got brave professionals like Sean Spicer. Somebody has to be the president's pit bull and I'm ready. I'm gonna take it to them."

One tense exchange this week on CNN led host Anderson Cooper to say he would "ignore" Gorka's "insults" because he didn't think it was constructive.

Gorka told Hannity that CNN and MSNBC used to have a good reputation but now face a large "credibility crisis."

The White House deputy assistant called the media outlets reporting on the Russian election meddling delusional, as they no evidence of illegal activity on behalf of Trump's staff. "They are tanking, somebody has to help them wake up and I'm glad to help them," he said.