Republicans vocally defended 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 on Sunday morning during sometimes combative interviews after a whistleblower complaint centered on his interactions with Ukraine's leader contributed to Speaker 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's (D-Calif.) announcement of an impeachment inquiry.

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, Trump’s personal attorney, told ABC’s George Stephanopoulos George Robert StephanopoulosColbert implores Pelosi to update 'weaponry' in SCOTUS fight: 'Trump has a literal heat ray' Murkowski: Supreme Court nominee should not be taken up before election Cruz says Senate Republicans likely have votes to confirm Trump Supreme Court nominee MORE that the complaint is "hearsay" and "unreliable."

"I am defending my client the best way I know how," he said. "This is not about getting 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 in trouble. This is about proving that Donald Trump was framed by the Democrats."

Rep. Jim Jordan James (Jim) Daniel JordanHouse panel pulls Powell into partisan battles over pandemic Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election House passes resolution condemning anti-Asian discrimination relating to coronavirus MORE (R-Ohio), one of Trump’s staunchest allies in the Democratic-majority House, took to CNN’s “State of the Union” to defend the White House placing the transcript of Trump's call with Ukrainian President Volodymyr Zelensky on a secret server, calling it a necessary step against leaks.

Jordan also defended the contents of the call, in which Trump tried to persuade Zelensky to investigate former Vice President Joe Biden and his son Hunter Biden.

“That doesn’t alarm you?” CNN’s Jake Tapper Jacob (Jake) Paul TapperThe media's misleading use of COVID-19 data Julia Louis-Dreyfus: 'We can't spend much time grieving' Ginsburg Pence aide dismisses concerns rushed vote on Trump nominee will hurt vulnerable senators MORE asked Jordan, who responded, “It’s not OK because he didn’t — but he didn't do that.”

When Tapper referenced the White House summary of the call backing up the CNN host's characterization of it, Jordan responded, “You guys don’t read things in context.”

And 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 Trump’s most vocal defenders in the Senate, said on CBS's "Face the Nation" that he has "zero problems" with the call.

Reminded by host Margaret Brennan that the whistleblower complaint, which Graham called “hearsay,” is based on information the person obtained from White House officials, Graham said the focus should be on finding out who the officials were.

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

White House policy adviser Stephen Miller Stephen MillerSpecial counsel investigating DeVos for potential Hatch Act violation: report Trump confirms another White House staffer tested positive for COVID-19 Biden pick creates furor, underscoring bitterness over Obama immigration policy MORE clashed with “Fox News Sunday” host Chris Wallace Christopher (Chris) WallaceHouse to vote on resolution affirming peaceful transition of power Gayle King calls out Pelosi for calling Trump supporters 'henchmen': 'Egregious language' GOP lawmakers distance themselves from Trump comments on transfer of power MORE, saying the whistleblower complaint “drips with condescension, righteous indignation and contempt for the president.”

Miller, however, refused to answer Wallace’s questions about why Trump used his private attorneys to reach out to Ukrainian officials.

Democratic lawmakers, meanwhile, said the whistleblower complaint and call summary indicated the necessity of the impeachment inquiry.

Sen. Chris Murphy Christopher (Chris) Scott MurphyDemocratic senator calls for 'more flexible' medical supply chain to counter pandemics The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon GOP chairman to release interim report on Biden probe 'in about a week' MORE (D-Conn.) told Brennan, “Rudy Giuliani is attempting to speak for the United States government.”

“You can understand how the Ukrainians are confused when the personal attorney for the president is coming to them asking them to help destroy one of his political rivals,” he added.

House Intelligence Committee Chairman Adam Schiff Adam Bennett SchiffSchiff to subpoena top DHS official, alleges whistleblower deposition is being stonewalled Schiff claims DHS is blocking whistleblower's access to records before testimony GOP lawmakers distance themselves from Trump comments on transfer of power MORE (D-Calif.) told NBC’s “Meet the Press” that an agreement for the whistleblower to testify had been reached. He added that he hoped the testimony would happen “very soon,” saying the committee was still ensuring that the whistleblower’s attorneys would get clearance to accompany them and put protective logistics in place.

Schiff was noncommittal on whether Giuliani would be called to testify.

"I don't want to commit myself to that at this point," he said. "We certainly have to do a lot of work to see what Giuliani has been doing in Ukraine."

House Democratic Caucus Chairman Hakeem Jeffries Hakeem Sekou JeffriesDemocratic leaders: Supreme Court fight is about ObamaCare Pelosi: House will stay in session until agreement is reached on coronavirus relief Races heat up for House leadership posts MORE (D-N.Y.) also told CNN’s “State of the Union” that he predicted some Republicans would eventually support the impeachment inquiry.

“The House is a separate and co-equal branch. We don’t work for this president,” Jeffries said. “We have a responsibility to serve as a check and balance, and these issues are serious.”

Sunday morning also saw the release of a CBS News-YouGov survey that found 55 percent of Americans support an impeachment inquiry, compared to 45 percent who disapprove. Thirty-five percent said they strongly approve.