Alaska Sen. Lisa Murkowski called on the president to resign and said if the GOP couldn't separate itself from Trump, she may leave the party.
One House Republican, former Rep. Justin Amash, voted with Democrats to impeach the president, and Trump was later acquitted by the Republican-controlled Senate.
The House of Representatives voted to impeach President Donald Trump on Wednesday over his role in inciting a insurrection at the US Capitol that resulted in five deaths.
One Republican voted to impeach Trump the first time, and five Democrats voted to impeach President Bill Clinton in the late 1990s.
The House of Representatives voted to impeach President Donald Trump on Wednesday for "incitement of insurrection" over his role in catalyzing a deadly siege of the US Capitol on January 6.