"Mitch is a dour, sullen, and unsmiling political hack, and if Republican Senators are going to stay with him, they will not win again", Trump said in a statement released through his political action committee amid the fallout over the former president's second impeachment trial.
"We did not send him there to vote his conscience, we did not send him there to do the right thing or whatever he said he was doing".
While a majority of the Senate, 57 of the 100 members, voted for conviction, it fell short of the two-thirds majority required.
Presidents are historically afforded broad immunity from lawsuits for actions they take in their role as commander-in-chief but this lawsuit was brought against Mr Trump in his personal, not official, capacity and alleges that none of the behaviour at issue had to do with his responsibilities as president.
"Is this still Donald Trump's party?" host Steve Inskeep asked Sasse. "If you don't get that, you're just not looking".
Murkowski no longer has to pass through a Republican primary election like the one she lost in 2010.
"Oh my, what a disappointment you are to us and to God!"
Among Republican senators who were in office for Trump's entire term, only Susan Collins of ME and Rand Paul of Kentucky voted in line with Trump's positions less than Murkowski.
A person familiar said that Trump wanted to mock McConnell for having multiple chins.
CNN reported last month that McConnell had indicated he believed that impeaching Trump would make it easier to get rid of the former President and Trumpism from the Republican Party, according to a source with knowledge of the matter.
Prior to the impeachment vote, Sasse had already rubbed party leaders the wrong way in Nebraska.
Republican officials in at least five Alaska state House districts have approved resolutions censuring U.S. Sen.
"Let's be clear, the anger in the state party has never been about me violating principle or abandoning conservative policy", Sasse, who was reelected to another six-year Senate term in the fall, said in the video.
Trump's lawyer and an extremist group have also been accused in the case.
Bennie Thompson accused Trump, his lawyer Rudy Giuliani, and extremist groups the Proud Boys and Oath Keepers of violating the 1871 act by supporting efforts to stop Congress from certifying Joe Biden as the new United States president.
The two-page letter goes on to defend Trump as a man of Christian faith and criticizes Kinzinger for attacking the former president, reportedly saying: "You won't convince us otherwise with your awful, rude accusations of President Trump!" But others have remained loyal in hopes of not alienating Trump supporters during future elections.
More broadly, he said, with technological advances like smartphones, it is easier for people who follow fringe movements and were previously geographically isolated to "find communities with a lot more confirmation bias". "I think it's primarily about the decline of place and about the evaporation of thick communities of people you actually break bread with", he said.
Trump faces several civil lawsuits, including two defamation lawsuits filed by women who accused him of sexually assaulting them before he was elected president in 2016.