Sen. Lindsey Graham Lindsey Olin GrahamLincoln Project mocks Lindsey Graham's fundraising lag with Sarah McLachlan-themed video The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election Trump dumbfounds GOP with latest unforced error MORE (R-S.C.), one of President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE’s most vocal defenders in the Senate, said Sunday he had “zero problems” with the phone call in which Trump suggested Ukrainian President Volodymyr Zelensky investigate former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE’s family.

“I have zero problems with this phone call,” Graham said on CBS’ “Face the Nation.” “We need a John Hancock moment from House Democrats: Quit hiding behind Nancy Pelosi Nancy PelosiDemocratic senator to party: 'A little message discipline wouldn't kill us' Overnight Health Care: New wave of COVID-19 cases builds in US | Florida to lift all coronavirus restrictions on restaurants, bars | Trump stirs questions with 0 drug coupon plan Overnight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds MORE. If you think the president did something wrong in this phone call, vote to open up an impeachment inquiry and a lot of democrats won’t because they’re afraid.”

Graham repeatedly characterized the whistleblower’s allegations as “hearsay” and contradicted host Margaret Brennan when she noted that a summary of the call released by the White House largely aligns with the report.

When Brennan said the allegations in the complaint are based on information obtained from several White House officials, the Senate Judiciary Committee chair said the focus should be on which officials provided the information.

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“The whistleblower says ‘I have no direct knowledge’… who are these people and what are they up to?” Graham said. “Salem witch trials have more due process than this.”

Graham went on to call for a special prosecutor to investigate Biden’s role in the dismissal amid corruption allegations of the prosecutor investigating a company Biden’s son Hunter sat on the board of. He demurred when asked if it was appropriate for Trump’ s personal attorney Rudy Giuliani Rudy GiulianiThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting CIA found Putin 'probably directing' campaign against Biden: report Democrats fear Russia interference could spoil bid to retake Senate MORE to investigate the matter.

Asked what his advice was for Trump, who has suggested the White House will not work with Congress on any legislative matters if an impeachment inquiry continues, Graham said, “Work with us on guns, try to do something on prescription drugs… Bill Clinton William (Bill) Jefferson ClintonHarris: Ginsburg 'absolutely' cleared the path for me Anxious Democrats amp up pressure for vote on COVID-19 aid Barr's Russia investigator has put some focus on Clinton Foundation: report MORE did two things at once, defend himself and govern the country.” Graham voted to impeach then-President Clinton in 1998.