"I don't trust Adam Schiff to be fair," Graham said.
On Sunday the president claimed that even if he did push the Ukrainian president for a quid pro quo, it would not be an impeachable offense.
In a surprise offer to a Republican intelligence committee member, attorney Mark Zaid said his whistleblower client will answer written questions "in writing, under oath & penalty of perjury."
The president unfurled an ardent attack on impeachment proceedings shortly after the House voted to make the inquiry official.
Andrew Napolitano said the impeachment process against Donald Trump permitted the president's lawyers to challenge evidence brought against him.
The author Lee Smith told the "Mornings with Maria" show that he believed the impeachment inquiry was created with an aim to "protect the swamp."
The high unsatisfaction rate means the constant drip of damning revelations made by current and former officials to lawmakers via private depositions aren't resonating with voters.
"You can look at their eyes when they almost start foaming at the mouth," Pastor Perry Stone said.
Trump announced on Sunday that ISIS leader Abu Bakr al-Baghdadi was killed during a U.S. military operation in Syria.
William Barr is "the president's hand – not the representative of the American people," Representative Adam Schiff warned.
"The entire Impeachment Scam was based on my perfect Ukrainian call, and the Whistleblowers account of that call, which turned out to be false (a fraud?)," the president tweeted.
Representative Adam Schiff said those Republicans attacked him because they themselves "lacked the courage to confront the most dangerous and unethical president in American history."
The commander-in-chief also said House Intelligence Committee Chairman Schiff was a "smart guy" but "crooked as hell" as he addressed the Values Voter Summit.
Democratic Rep. Adam Schiff joined several GOP lawmakers in condemning President Trump's U.S. troop withdrawal from Syria, warning that ISIS is already beginning its resurgence.
The proceedings under Presidents Nixon and Clinton sought the truth rather than partisan advantage.
Orlando Sentinel Editorial Board Writes 'All Americans Should Support Trump Impeachment Inquiry'
"If I lied, even a little bit in front of those guys like Adam Schiff has lied to the American people," Trump Jr. said, "and in front of Congress the other day, they'd throw me in jail for perjury."
"Well, you got rid of Pelosi and you got rid of shifty Schiff. Finland is a happy country," Trump said, adding that Finnish President Sauli Niinistö is "a happy leader, too."
"That was an article of impeachment against Richard Nixon," said House Intelligence Committee Chairman Adam Schiff, flanked by House Speaker Nancy Pelosi.
Pompeo previously accused congressional Democrats of intimidation tactics for requesting depositions from department officials.
Giuliani said if Schiff is removed and a "neutral person" is put in his place as chairman of the House committee, then he may consider cooperating with Congress.
"You know, part of this is our fault, in the media we set up these just terrible incentives," Carlson said.
"I want to know who's the person who gave the whistleblower the information because that's close to a spy," Trump reportedly told staff at the U.S. Mission to the U.N.
"This is the essence of what the president communicates," California Rep. Adam Schiff said before taking artistic license in paraphrasing President Donald Trump's call with Ukrainian President Volodymyr Zelensky.
"It is shocking at another level that the White House would release these notes and felt that somehow this would help the president's case or cause because what those notes reflect is a classic mafia-like shakedown of a foreign leader," said Rep. Adam Schiff.
The director of national intelligence refused to disclose information to lawmakers on Thursday about a whistleblower complaint reportedly filed against an alleged promise made by Trump to an unknown foreign leader.
"This is not considered by the intelligence community...to be a frivolous matter or something that was overblown," Andrew McCabe said.
Neal Katyal suggested that the White House and Department of Justice are "contorting themselves backwards to try to hide this."
"The jury I'm most worried about, not the Senate because I think that's a preordained conclusion, is the American people. Can we make the case to the American people? I want to make sure that's true before we go down that path."
California Democratic congressman Adam Schiff said President Donald Trump believes "racism is a good political strategy" to rile up Republican voters heading into 2020.