Graham vows to publicly question whistleblowers if Trump is impeached

Sen. Lindsey GrahamLindsey Olin GrahamSenate Democrats pump brakes on new stimulus checks Comey, Rice, Clapper among GOP senator's targets for subpoenas amid Obama-era probe Schumer: GOP should 'stop sitting on their hands' on coronavirus bill MORE (R-S.C.) promised to question the whistleblowers publicly if President TrumpDonald John TrumpMinneapolis erupts for third night, as protests spread, Trump vows retaliation Stocks open mixed ahead of Trump briefing on China The island that can save America MORE ends up being impeached.

Graham said on Fox News' "Sunday Morning Futures" that if the president is impeached, he intends to have the whistleblowers testify in the Senate if they don't go before the House. 

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"If the whistleblowers' allegations are turned into an impeachment article, it's imperative that the whistle-blower be interviewed in public, under oath and cross-examined. Nobody in America goes to jail or has anything done to them without confronting their accuser," he told host Maria BartiromoMaria Sara BartiromoTrump lashes out at Fox News after poll shows him trailing Biden Trump complains Fox News is 'doing nothing to help' him get reelected Overnight Defense: Pentagon removes official from key role amid pandemic | Trump hints at bringing more F-35 production to US | Military being prepped to distribute possible vaccine MORE.

The South Carolina senator said the whistleblowers need to come forward so the "public can judge their credibility."

The House opened the impeachment inquiry after reports emerged of a call in which Trump asked the Ukrainian president to investigate former Vice President Joe BidenJoe BidenBiden campaign cancels fundraiser with Mueller prosecutor Twitter joins Democrats to boost mail-in voting — here's why The Hill's Morning Report - Presented by Facebook - George Floyd's death sparks protests, National Guard activation MORE following Trump's decision to withhold military aid from the country. 

A whistleblower report on the call thrust the conversation into the spotlight, and the White House released a partial readout of the call. A second whistleblower, who reportedly has firsthand knowledge of the events, has also talked to the intelligence community's inspector general.

Graham compared the whistleblower accusations to "unverifiable" allegations of sexual assault against Supreme Court Justice Brett KavanaughBrett Michael KavanaughFrustration builds in key committee ahead of Graham subpoena vote  Speculation swirls about next Supreme Court vacancy The 10 Senate seats most likely to flip MORE last year. 

"This is Kavanaugh all over again," he said.