Where They Stand: January 6th Scorecard
We looked into three key votes to characterize each member of Congress' views on the events of January 6th. For each key vote, we scored the votes as follows on a scale from "-2" indicating support of the events of January 6th, to "+2" indicating opposition of the events of January 6th:
Electoral Decertification: This vote took place on January 6th, after a long interruption by rioters entering the Capitol building. The vote was to block certification of the vote of the Electoral College:
* YEA to block certification scores as -2 (support Jan. 6 events)
* NAY to block certification scores as +2 (oppose Jan. 6 events)
H.R. 24 Impeachment: President Trump was impeached for inciting insurrection. The impeachment vote, on bill #24, took place separately for the House and Senate:
* NAY on impeachment in House vote scores as -2 (support Jan. 6 events)
* NOT GUILTY on removal from office in Senate vote scores as -2 (support Jan. 6 events)
* YEA on impeachment in House vote scores as +1 (oppose Jan. 6 events)
* GUILTY on removal from office in Senate vote scores as +2 (strongly oppose Jan. 6 events)
* SPONSOR on impeachment bill H.R. 24 scores as +2 (strongly oppose Jan. 6 events)
H.R. 503 Commission: Congress created a Commission to investigate the events of Jan. 6th. The Senate rejected a bipartisan commission; that vote counts for Senators. Members of the House them created a separate commission without the Senate; that vote counts for House members:
* NAY on creating a Jan. 6 Commission scores as -2 (support Jan. 6 events)
* YEA on creating a Jan. 6 Commission scores as +2 (oppose Jan. 6 events)
Legislator category Count
Hard-core J6 supporter (score -6) 105
J6 supporter (score -3/-4/-5) 27
Leaning toward J6 support (score -2) 104
Mixed views on Jan. 6 (score -1/0/+1/+2/+3) 26
Opposes Jan. 6 events (score +4/5) 17
Hard-core against Jan. 6th (score +6) 261
Grand Total 540
The grid above totals the scores for each legislator, and then counts the number of legislators in each score category. These votes were spread over a few months, so some members didn't have the opportunity to cast all three votes -- those are reflected by omissions which count as zero in the score. 
A score of "-6" indicates that the legislator voted three times to support the Capitol riots -- 105 legislators did so, all Republicans. A score of "+6" indicates that the legislator three times opposed the Capitol riots -- 261 legislators did so, 257 Democrats and 4 Republicans. The mixed votes are the most interesting cases-- the 174 legislators who indicated some support and some opposition to the events of Jan. 6. 
The lowest-scoring Democrats all scored "+4" -- Sen. Patty Murray, Sen. Kyrsten Sinema, and Rep. Rashida Tlaib. In all three cases, the legislator abstained or was absent from one of the key votes. There were 10 additional Democrats scoring below "+5", but those were all legislators who left office, or who were sworn in after the earliest vote. There were 6 additional Democrats who voted YEA on impeachment but chose not to co-sponsor the House Bill; they scored "+5". In other words, there were zero Democrats who actively voted against the consensus Democratic view of opposing the Capitol riots of January 6th. 
That was not the case among Republican legislators. There were five Republican Senators who scored "+6": Cassidy; Collins; Murkowski; Romney; and Sasse. In addition, two Republican House members scored "+5": Liz Cheney and Adam Kinzinger, both of whom voted to impeach but didn't co-sponsor H.R. 24. Those seven Republicans have become the political targets of former President Trump and his ardent supporters. Over 120 Republican legislators scored in the range of "-2' to "+3" -- some of that group will draw Republican primary opponents because of these votes.