It seems like half a dozen GOP representatives and several GOP senators including Romney, Collins, Murkowki, Sasse, and Toomey believe that Trump should be impeached. Reports are that McConnell is on the fence, and if McConnell votes yes, the Senate will meet the 67 votes.
It appears like they thinking about doing this even with only a week left:
1) to barr him from running from office in 2024 and purge Trumpism from the GOP
2) establish a precedent that there will be zero tolerance of a chief executive in the future who summons a mob in DC to disrupt the constitutional process of Congress certifying the election
3) actually take this threat seriously now since they were seconds away from being face to face and surrounded by rioters with zip ties, baseball bats, and nooses