Some GOP lawmakers continue to push baseless conspiracy theories about the pro-Trump assault on the Capitol.
A poll released this week showed that two-thirds of Republican voters want Trump to run again in 2024.
"The American people deserve the truth," the Illinois Republican said.
All 10 of the House Republicans who voted to impeach Trump for his alleged role in the deadly January 6 Capitol riot have managed to out-fundraise their Trump-backed challengers.
House Speaker Pelosi said the embattled New York governor "should look inside his heart ... to see if he can govern effectively."
Just 14 percent of Republicans believe the former president should have been convicted by the Senate.
"I could see the pressure would become great for us to actually have to impeach Biden," California Representative Devin Nunes said Wednesday.
"This is not a Trump-first party. This is a country-first party," the Republican congressman said.
"We do need to find a way to hold the president accountable," said the freshman congresswoman from South Carolina Sunday.
The House of Representatives impeached Trump on Wednesday and unlike in 2019, when no Republicans voted in favor of impeachment, this time around members of the president's own party joined the effort.
"Impeach him and convict him," Stephen King tweeted. "Anyone else would be in jail now, wearing an orange jumpsuit. Also, he's dangerous."
Democrats in the House of Representatives accused Trump of engaging in high crimes and misdemeanors when he encouraged "lawless action" at the Capitol on Wednesday.
"I think if inciting to insurrection isn't [impeachable], then I don't really know what is," the former GOP New Jersey governor said.
"I actually do believe that the president has disqualified himself," said the Republican lawmaker from Pennsylvania on Sunday.
Democratic Congressman Adam Schiff called for a quick impeachment of the president, following the riot at the Capitol on Wednesday.
Rep. Val Demings spoke about the possibility of impeachment and court packing as ways to prevent Trump from appointing a new Supreme Court justice.
A 1999 video showed then-Representative Lindsey Graham stating the need for witnesses during Bill Clinton's impeachment trial.
After sharing a Christmas message calling for "understanding and respect," Trump tweeted negative remarks about House Speaker Nancy Pelosi.
On Wednesday, Wolf Blitzer shared a 2008 clip, where President Donald Trump praised Nancy Pelosi and said President George W. Bush should've been impeached.
Led by a new high of independents who support impeachment, a Sunday Fox News poll found 54 percent of Americans want to see President Donald Trump impeached.
"Maybe you give him a ticket and give him a summons to show up in court, but you don't impeach the president for this kind of nonsense," Democratic entrepreneur and activist Don Peebles said on 'Fox & Friends.'
Adam Schiff provided few details of Monday's articles of impeachment hearing against Donald Trump.
The paper's editorial board penned a scathing piece demanding President Trump be impeached for both the Ukraine and Russia scandals.
Removing Trump from office would require a two-thirds majority vote in the Senate, which MSNBC political analyst Jonathan Lemire said won't happen.
"We know that it's completely impeachable and completely illegal," the former White House communications director said in reference to Trump's actions towards Ukraine.
"Impeachment is always constitutional if it originates in the House and if its basis is arguably for treason, bribery or other high crimes and misdemeanors," wrote Andrew Napolitano in an op-ed.
"There are multiple levels of misconduct here and look, there were 12 people on that call that the president made to the Ukraine president," Representative Stephen Lynch said.
Trump gave Turkey the green light to invade northeastern Syria after a phone call with Turkish President Erdoğan last Sunday.
Longtime White House correspondent Sam Donaldson said President Trump's supporters love him because they want a "white Christian country" back. But he said Senate Republicans will gladly convict him if public support for impeachment continues to rise.
"This is pretty uncharted territory for many of us and even for Congress," the Democratic congresswoman said.