Sen. John McCain John Sidney McCainThe electoral reality that the media ignores Kelly's lead widens to 10 points in Arizona Senate race: poll COVID response shows a way forward on private gun sale checks MORE (R-Ariz.) reportedly said Tuesday that scandals within President Trump's administration are reaching a "Watergate size and scale."

McCain made the statement at an International Republican Institute dinner on Tuesday night. Multiple reporters said that during a speech at the event, McCain compared recent reports surrounding Trump's administration to Watergate, which led to the resignation of President Richard Nixon.

McCain just said at a dinner honoring him that the Trump scandals have reached a "Watergate size and scale" -- wow — Tim Mak (@timkmak) May 17, 2017

McCain at IRI dinner says scandals surrounding Trump are reaching "watergate size" — Jenna Lifhits (@jlifhits) May 17, 2017

McCain, at IRI dinner panel being moderated by Schiefer, said the Trump scandals have become nearly "Watergate-size," per attendee. — Maggie Haberman (@maggieNYT) May 17, 2017

@SenJohnMcCain at IRI dinner now- "We've seen this movie before. It's reaching Watergate size and scale....This is not good for the country" — Ana Navarro (@ananavarro) May 17, 2017

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McCain's statement came just hours after a bombshell report that Trump asked then-FBI Director James Comey in February to stop his investigation of former national security adviser Michael Flynn.

Trump has faced major fallout over the last week following his surprise firing of Comey and reports that he revealed highly confidential information to Russian diplomats.

McCain also reportedly criticized Trump during his speech, calling it "unacceptable" to have allowed Russian Foreign Minister Sergey Lavrov into the Oval Office.

"I've known Lavrov for 30 years&he's an old KGB stooge&Putin is a murderer. To have the guy in the Oval Office...it's unacceptable " -McCain — Danielle Pletka (@dpletka) May 17, 2017