Donald Trump appeared to call Nancy Pelosi's bluff on Monday, suggesting after she dared him to testify in an impeachment hearing that he might do it—either in writing or in person.

The president responded to written questions in April from then-special counsel Robert Mueller, but entering statements for the record in an impeachment inquiry would be an unprecedented move in a game with higher stakes.

Pelosi, Trump tweeted, 'suggested ... that I testify about the phony Impeachment Witch Hunt. She also said I could do it in writing. Even though I did nothing wrong, and don’t like giving credibility to this No Due Process Hoax, I like the idea & will, in order to get Congress focused again, strongly consider it!'

The House Intelligence Committee declined comment on Monday.

The House speaker had said in an interview broadcasted Sunday that Trump should testify if he's upset about the way Democrats have presented witnesses and evidence.

Trump has 'every opportunity to present his case,' she said on the CBS News program 'Face the Nation.' The president blased the show as 'DEFACE THE NATION' in his two-part tweet on Monday

Pelosi insisted that 'the president could come right before the committee and talk—speak all the truth that he wants, if he wants.'

Senate Minority Leader Chuck Schumer said much the same thing during a Sunday press conference.

President Donald Trump is facing an impeachment inquiry led by House Democrats; he appeared to call House Speaker Nancy Pelosi's bluff on Monday, saying he likes the idea of testifying on his own behalf in a hearing, or answering written questions

Pelosi claimed in a 'Face the Nation' interview that Trump's actions are worse than disgraced former President Richard Nixon's, and that if the president doesn't like how impeachment evidence is being presented he should come and testify himself

The president suggested an unprecedented impeachment defense tactic: testifying in his own defense before articles of impeachment are even presented to the full House of Representatives for a vote

'If Donald Trump doesn't agree with what he's hearing, doesn't like what he's hearing, he shouldn't tweet. He should come to the committee and testify under oath. And he should allow all those around him to come to the committee and testify under oath,' he told reporters.

'When Donald Trump refuses to come to the committee—now that Speaker Pelosi has invited him—when he doesn’t let all the people around him come before the committee, you gotta ask the question: What is he hiding? Why is he afraid to confront what these people have said?' Schumer asked.

Trump also suggested, without explanation that 'Nervous Nancy Pelosi ... is petrified by her Radical Left knowing she will soon be gone.'

Democrats on her left flank, he said, 'are her BOSS' along with the news media.

Pelosi claimed the crimes she and other Democrats have accused Trump of, including bribery, are worse than those of former President Richard Nixon, who resigned in 1974.

'It's really a sad thing,' the House Speaker said.

'I mean, what the president did was so much worse than even what Richard Nixon did. And at some point, Richard Nixon cared about the country enough to recognize that this could not continue.'

Senate Minority Leader Chuck Schumer said during a press conference that the president should come and testify under oath in his own impeachment inquiry hearings

Congress drafted articles of impeachment against Nixon for obstruction of justice, abuse of power and contempt of Congress. He resigned the U.S. presidency in 1974. The impeachment inquiry into Trump stems from a call with Ukrainian President Volodymyr Zelensky where he requested his Ukrainian counterpart investigate Joe Biden

Articles of impeachment were filed against Nixon for obstruction of justice, abuse of power and contempt of Congress, but he resigned before a vote was cast on whether to formally remove him from office.

The House began its public hearings as part of the impeachment inquiry into Trump last week and will hear from eight more witnesses this week.

The inquiry stems from a whistle-blower complaint that revealed the nature of the president's call with his Ukrainian counterpart was centered around requesting President Volodymyr Zelensky launch a probe into political rival Joe Biden.

The request came just days after the Whtie House froze millions in military aid to Ukraine, causing Democrats to claim the president was setting a quid pro quo of assistance being dependent on the investigation.

Trump denies any wrongdoing and maintains that the inquiry into his actions are a partisan 'witch hunt' – claiming his call with the Ukrainian president was 'perfect.'

Former U.S. Ambassador to Ukraine Marie Yovanovitch publicly testified before the House Intelligence Committee on Friday after the White House prematurely called her back in May from her three-year assignment in Ukraine.

'Everywhere Marie Yovanovitch went turned bad,' Trump tweeted during Yovanovitch's hearing. 'She started off in Somalia, how did that go? Then fast forward to Ukraine, where the new Ukrainian President spoke unfavorably about her in my second phone call with him.'

'It is a U.S. President's absolute right to appoint ambassadors,' he continued. 'They call it 'serving at the pleasure of the President.' The U.S. now has a very strong and powerful foreign policy, much different than proceeding administrations. It is called, quite simply, America First! With all of that, however, I have done FAR more for Ukraine than O.'

Yovanovitch started off her testimony by detailing some of the 'hardship posts' she had endured as a career diplomat - like Somalia - and became emotional when talking about the July 25 call between Trump and Zelensky that the president was referring to in his tweet.

The White House prematurely recalled former U.S. Ambassador to Ukraine Marie Yovanovitch (pictured) from her her three-year assignment in May; she publicly testified Friday as part of the impeachment inquiry before the House Intelligence Committee

Trump tweeted during the hearing that 'everywhere Marie Yovanovitch went turned bad' and insisted it was his prerogative as president to appoint ambassadors

House Intelligence Committee Chairman Adam Schiff voiced concerns that Trump's tweet was 'witness intimidation in real time.'

Pelosi, when asked, however, would not say whether she believed it was witness intimidation or not.

She claimed she had not looked enough into the language of the tweets to determine the potential legal implications, but she did say that tweeting at Yovanovitch was a 'mistake.'

'He made a mistake. And he knows her strength and he was trying to undermine it,' Pelosi told CBS in her interview. 'I think even his most ardent supporters have to honestly admit this was the wrong thing for the president to do.'

'He should not frivolously throw out insults. But he does,' she continued. 'I think part of it is his own insecurity as an imposter. I think he knows full well that he's in that office way over his head. And so he has diminish everyone else.'

Before Yovanovitch testified, Pelosi tweeted that she had been 'smeared' by the president's allies and unjustly removed from her post in Ukraine.

'Today, we hear from one of our most respected diplomats, who spent her career as an anti-corruption crusader,' Pelosi tweeted Friday. 'She was viciously smeared by Trump's allies, removed from her post, then threatened by the President on his 'perfect' call.'

Brennan attempted to ask Pelosi about her reaction to Republican talking points regarding the impeachment inquiry, but the California Democrats refused to entertain any questions related to the GOP.

House Intelligence Committee Chairman Adam Schiff voiced concerns that the president tweeting at Yovanovitch during her hearing could be 'witness intimidation'

Pelosi, in her CBS interview, would not say if she agreed with Schiff on whether the comment was witness intimidation, but did say it was a 'mistake'

'You know what, if we could just talk about what we want to do. I really have a real discomfort level of responding to what Republicans say because they are in denial about what is happening in the country,' Pelosi told the CBS Sunday morning host. 'So if you want to ask me about where we are going on this, I'm happy to respond to that. But, I find it a waste of my time and yours to just be talking about what Republican say.'

When Brennan said she only wanted to give Pelosi a chance to respond to their argument, the House Speaker cut her off.

'I'm not going to respond,' Pelosi asserted. 'Let it stand. Let their arguments stand, because it's on such quicksand that I don't even want to have it given any more visibility by my dignifying any of their misrepresentations of what they say.

'I'm not here to talk about what they say because they're not facing the reality of what is happening to our country,' she concluded.