Trump, 73, is accused of abusing his power by pressuring Ukraine to investigate Biden, a former USA vice president, as well as a discredited theory that Democrats conspired with Ukraine to meddle in the 2016 election.
On his 1063rd day in office and in an overwhelming vote President Donald Trump has just been impeached by the U.S. House of Representatives for high crimes and misdemeanors in two Articles of Impeachment detailing his abuse of power and obstruction of Congress.
But Pelosi's comments have also angered some Republicans in the Senate.
The Democrats have argued that it is Mr Trump's Republicans who are balking at the appearance of witnesses.
President Donald Trump is unequivocal: He is innocent, the phone call was "perfect", and he will soon be exonerated of all accusations of wrongdoing as he seeks reelection in 2020.
Trump, 73, is accused of abusing his power by holding back $391m in security aid to Ukraine in an effort to get Kyiv to announce a corruption investigation of former Vice President Joe Biden, a leading candidate for the Democratic nomination to face Trump in the 2020 election.
White House spokesman Hogan Gidley said that Mr Trump had accepted the invitation to speak.
"My fear is that any opposing party in the future will try to use impeachment in a way if they can't take the president out of office then at least they can try to damage the president", said Robert Aderholt.
But Democrats might not make it that easy.
Christianity Today, a magazine founded by the late USA evangelist Reverend Billy Graham, called on Thursday for Trump's removal from office in an editorial that branded the effort to get Ukraine to probe Biden as "profoundly immoral".
Senate Majority Leader Mitch McConnell (R-Ky.) accused House Speaker Nancy Pelosi (D-Calif.) and House Democrat leaders of being "too afraid" to send their articles of impeachment to the Senate.
In a press conference on Thursday, Pelosi reiterated that she will withhold the articles until she can confirm the terms of the process will be "fair", and Senate Minority Leader Chuck Schumer and other congressional Democrats, lined up behind her.
According to the website govtrack.us, Gabbard missed 88.7% of the 141 House votes taken in the past three months. "What they're proposing - to not send the articles for disposition to the Senate after being passed to the House - is incredibly risky", he said.
A Senate trial would kick off a politically-charged year heading into the presidential election, which will pit Trump against one of a field of Democratic contenders, including Biden, who have repeatedly criticized Trump's conduct in office and promised to make it a key issue.
McConnell has also pledged to work in close coordination with the White House and Trump's legal team during the trial.
Pelosi's tactic gives Democrats time to convince some Senate Republicans that they should hear from witnesses, said Democratic Senator Chris Van Hollen. GOP Sen. Lindsey Graham of SC, said Thursday he was outraged.
I'm not an impartial juror. "The Senate must put this right", McConnell said on the Senate floor.
Also commending over his firmness, in all the raging storm that brewed during the impeachment process, Kurfi said the USA president is a great and fearless leader who can not be distracted by "the shenanigans of some misguided politicians". "The Do Nothings are so bad for our Country!"
"And it wasn't me, it was all of our members making their own decision", Pelosi told AP.
But Pelosi seems unfazed by the criticism.
- Here's how Europe's exoplanet hunter will unravel the mystery of extraterrestrial life
- Scotland can not be held prisoner by English warns Scottish Nationalist leader
- Russian Federation blocks Premier League broadcasts by Amazon’s Twitch over lawsuit
- Seeking economic support, Iranian President Hassan Rouhani concluded two-day Japan visit
- Apple, Google, Amazon are coming together to make your home 'smart'
- Donald Trump impeachment: What happens next?
- Days after impeachment, Pelosi invites Trump to deliver State of the Union
- Mexico objects to USMCA labor provision
- China won't allow foreign forces to interfere in Hong Kong, Macau: Xi
- This week's democratic debate is back - Mother Jones