In a Wednesday tweet, Donald Trump Jr. called for the removal of Utah Senator Mitt Romney from the GOP after Romney announced he would vote to convict President Donald Trump on the abuse of power charge leveled against him in his impeachment trial.
Martha McSally argued that a vote to remove Trump would be an effort to "decapitate" the government ahead of the 2020 election.
"There will never, ever have been an American president with the power that Donald Trump possesses right now in this moment," Steve Schmidt argued.
Ed Adams, a precinct committeeman in Marion County, Indianapolis, said president's impeachment shows "nothing remains of the party I knew."
"I think Susan Collins probably got in more of a jam than anybody else," conservative radio host Howie Carr told 'Fox & Friends.'
"Hey hey, ho ho, Susan Collins has to go," the best-selling author tweeted.
Senate Chaplain Barry Black opened Friday's impeachment trial against President Donald Trump with a plea to God that senators remember "that they alone are accountable to you for their conduct."
House impeachment manager Adam Schiff on Thursday offered to cap witness depositions to a time limit of one week. "Let's take a week to have a fair trial," he said.
"Those offering to tell the truth should be welcomed, not pilloried," Andrew Napolitano wrote.
Former House Republican Conference policy director Evan McMullin criticized Alan Dershowitz's defense during Monday's hearing.
"It's pretty fair to say that John Bolton has a relevant testimony to provide," the Republican senator told reporters.
The topic was among the top Twitter trends as users posted their reasons for leaving the party, with many placing the blame on President Donald Trump.
Democrats said Trump attorneys' opening statements had the unintended result of making the case for calling more witnesses.
"The evidence is ample and uncontradicted" for removing the president from office, Andrew Napolitano argued.
Twitter users voiced frustration at the tactics employed by Republican senators, seeking to block new witnesses.
Georgia Democratic Representative Lucy McBath ran for office after her son was shot and killed by a man who claimed he was playing his music too loudly.
"I think we ought to go through the right process," the lawmaker from Florida said.
The Eastern Arizona Courier compared the senator's behavior to "name-calling like a third-grader on the playground."
"I think they [the Senate] should hear the testimony that they can get," Congressman Francis Rooney said.
"That directly contradicts what you said as a Republican House impeachment manager in 1999 during the Clinton impeachment trial," Chris Wallace noted.
"It's also pretty damn cowardly. Imagine being this afraid," S.E. Cupp said.
Chip Roy instructed House Speaker Pelosi how to walk from the House of Representatives to the Senate in a video expressing GOP frustration at her weeks-long decision to hold onto the articles of impeachment.
Democrats are keen to hear from key administration official witnesses, but Republicans led by Senator Mitch McConnell are fighting the proposal.
"I find that absolutely insane. I think that's unacceptable," Lee said.
Democratic Congresswoman Maxine Waters tweeted Monday that Republicans who "shield and protect" President Donald Trump are "responsible for dragging us to war."
GOP Senator Roy Blunt claimed that President Donald Trump's Senate impeachment trial will be over before his State of the Union address in early February.
Former Ted Cruz aide Rick Tyler told MSNBC that the party had done a "really bad job" of recruiting minority members.
"I don't like the way that he tweets, some of the things that he says," GOP Senator James Lankford said. "His word choices at times are not my word choices."
"But I think anyone voting on the facts, anyone voting on the law, this is a very easy vote," the senator from Texas argued.
"Where's the Republican leadership in Congress to say 'no'?" Senator Ben Cardin asked in an interview with Fox News Sunday.