Fueling McCain's outrage seemed to be the long time it took to Capitol Police to clear the hearing of the rowdy crowd, speak out against former Secretary of State Henry Kissinger who was set to testify.

"You're going to have to shut up or I'm going to have you arrested," finally McCain told one of the protesters.

He then apologized to Kissinger for the rough start to the hearing.

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Prosecutor Skandalakis has previously suggested that pursuing criminal charges against President Donald Trump may not be feasible until after he leaves office in 2029. (Craig Hudson/Politico/Bloomberg via Getty Images)

Credit: Bloomberg via Getty Images