Ms Pelosi suggested "that I testify about the phony Impeachment Witch Hunt".
"He has every opportunity to present his case", she said.
It was unclear what kind of testimony the president had in mind.
Axios: "Trump attacks Yovanovitch as she testifies at impeachment hearing" - "President Trump attacked former Ukraine Ambassador Marie Yovanovitch in a pair of tweets as she testified Friday in the House's impeachment inquiry".
Trump told reporters last week that he knew "nothing" about the call with Sondland.
The Mueller report ultimately found that Russian agents sought to influence the U.S. election but that there was no evidence of collusion with the Trump campaign.
Trump "could come right before the committee and talk, speak all the truth that he wants if he wants", she said.
During his 1998 impeachment saga, president Bill Clinton, a Democrat, testified before a federal grand jury for four hours by video link.
Penn State QB Sean Clifford Has A Message For Ohio State
On defense, the Hoosiers were able to force Penn State into third-and-long situations but had trouble finishing the job. Since surrendering 21 points to Florida Atlantic in their opener, they haven't given up more than 14 to anyone.
His ambiguously worded tweet implied he might be willing to answer written questions, rather than appear in person before the House Intelligence Committee.
Letter stressed that the grand jury materials redacted from the Mueller report are crucial to the House's impeachment inquiry, explaining to the judges that "We have at least two people that have already been convicted of lying to Congress", noting that they were "lying about things that go directly to the Mueller report", the National Law Journal reported.
Top congressional Republicans Devin Nunes and Jim Jordan "reluctantly" wrote Senator Ron Johnson asking him for any firsthand knowledge he has on President Donald Trump's actions with respect to Ukraine. This "wasn't the usual "hire my kid" situation", Giuliani said, because even though his son has "known the president since he was a baby. they also had a relationship independent of me".
His comments came after Mr Trump tweeted attacks on a witness - Marie Yovanovitch, the former U.S. ambassador to Ukraine - while she was testifying to Congress on Friday.
Mr Morrison said Mr Sondland and Mr Trump had spoken approximately five times between July 15 and September 11 - the weeks that $391 million in USA assistance was withheld from Ukraine before it was released.
Mr Trump and his supporters have argued that the allegations against him so far are not supported by first-hand witnesses.
On Wednesday, EU ambassador Gordon Sondland, Deputy Assistant Secretary of Defense for Russia, Ukraine and Eurasia Laura Cooper, and Undersecretary of State for Political Affairs David Hale are set to give their testimonies. Holmes' testimony provides Democrats with firsthand accounting that brings the push for the investigations closer to the President.
The hearings could clear the way for the House to approve articles of impeachment - formal charges - against Trump. A Senate trial, if called for, would likely come in 2020.
A poll released Monday confirmed that the country is split more or less down the middle on whether Mr Trump should be removed from office. "You should ask him", Vadym Prystaiko said, according to Reuters.