Liz Cheney's prior voting record in Congress is irrelevant. What is relevant is Trump's attempt to overthrow the change of power, as per the US Constitution. Liz Cheney, despite her family name and her political party, is one of the two GOP reps in Congress who stood up to say Trump is wrong. All the others were either criminally involved with Trump, outright hypocrites, too frightened to speak up, or were among the sorry QAnon believers who were all off their meds.
Trump didn't try this alone. He tried to involve GOP state officials in at least Arizona and Georgia. When those officials refused, he directly threatened them and their families. Trump also tried to involve appointed GOP officials at the top of the US Dept. of Justice. When those efforts also failed, similar threats followed.
Unlike Liz Chaney, there were a number of US Congressmen who also assisted Trump's attempted coup. At least five of them, possibly six, went so far as asking Trump's White House for pre-emptive pardons, to prevent their prosecution for sedition. Yesterday, multiple witnesses, including lawyers and White House staff, testified that these 5, asked for pardons:
- Scott Perry (Pennsylvania)
- Mo Brooks (Alabama)
- Matt Gaetz (Florida)
- Louie Gohmert (Texas)
- Andy Biggs (Arizona)
The possible 6th is:
- Marjorie Taylor Greene (Georgia)
One White House staffer testified that she had been told about Greene asking for a pardon, but that she didn't know about that firsthand.
They clearly violated their oaths to uphold the Constitution. They may very well be prosecuted for attempting to commit sedition, and lying to investigators to hide their criminal involvement.