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Representative Kay J. Christofferson
Utah legislator profile

Years served in the Utah legislature

First session in legislature: 2013
Most recent year of service for which data are available: 2022
Total sessions served in Utah House as of 2022: 10
Total sessions served in Utah Senate as of 2022: 0

How to read the statistical profile

I present a variety of statistics about Rep. Kay J. Christofferson's service in the Utah legislature. I highlight differences from chamber averages using little green and red arrows. The number of arrows is statistically determined. More arrows indicate a larger difference compared to the chamber average, in relation to how much diversity there is among legislators on this metric. If all legislators introduce exactly 5 bills, then a legislator who introduces 10 is very different; if legislators vary wildly in how many bills they introduce (but the average is still 5), then a legislator who introduces 10 bills may be less different from average. The standard deviation measures this diversity.

Rep. Christofferson's statistical profile

2013201420152016201720182019202020212022
Service summary. Service prior to 2007 (if any) is not shown here. My database goes back only to 2007.
  Chamber HouseHouseHouseHouseHouseHouseHouseHouseHouseHouse
  District H56H56H56H56H56H56H56H56H56H56
  Party RRRRRRRRRR
Leadership NoneNoneNoneNoneNoneNoneNoneNoneNoneNone
Years in chamber 12345678910
Years comparison LowerLowerLowerLower====HigherHigherHigherHigher
 
2013201420152016201720182019202020212022
Bills sponsored (learn more) Bills written and promoted by the legislator in his/her own chamber.
Introduced by Christofferson 05445710437
Chamber average 5.86.46.77.06.77.17.37.36.67.1
Difference -5.8-1.4-2.7-3.0-1.7-0.1+2.7-3.3-3.6-0.1
Comparison LowerLowerLowerLowerLowerLower==HigherLowerLowerLower==
 
2013201420152016201720182019202020212022
Bill passage rate (learn more). What percent of Rep. Christofferson's sponsored bills pass and are officially "enrolled"? (I ignore whether the governor signed or vetoted the bill.)
Bills introduced 05445710437
Bills passed 0123148315
Passage rate 0.0%20%50%75%20%57%80%75%33%71%
Chamber average 66%52%63%54%61%53%63%58%60%58%
Difference -65.8-32.2-13.0+21-41.4+3.6+17+17-26.8+13
Comparison LowerLowerLowerLowerLowerLowerHigherLowerLower==HigherHigherLowerHigher
 
2013201420152016201720182019202020212022
Bills floor sponsored. A "floor sponsor" is like a secondary sponsor of a bill. After a bill passes the sponsor's chamber, its sponsor needs to find a "floor sponsor" in the other chamber to usher it through the other chamber.
Total floor sponsored 3011653336
Chamber average 3.53.53.83.33.63.43.43.13.13.0
Difference -0.5-3.5-2.8-2.3+2.4+1.6-0.4-0.1-0.1+3.0
Comparison ==LowerLowerLowerHigherHigher======Higher
 
2013201420152016201720182019202020212022
Missed votes (learn more). Usually missed votes occur because of competing obligations within the legislature, not because the legislator has left the capitol.
Missed votes na1052103311313
Total votes held 658664699657727734752698666711
Absentee rate 0.0%1.5%0.7%0.3%1.4%0.4%0.4%0.1%20%0.4%
Chamber average 5.9%6.2%6.3%6.4%5.2%8.0%6.4%7.1%6.1%5.7%
Difference -5.9-4.7-5.6-6.1-3.8-7.6-6.0-7.0+14-5.3
Comparison LowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerHigherHigherLower
 
2013201420152016201720182019202020212022
"Nay" votes (learn more). Most floor votes pass by overwhelming majorities, since unpopular bills get weeded out long before they reach the floor. As a result, "nay" votes are rare.
"Nay" votes 42404639323952503047
Total votes held 658664699657727734752698666711
"Nay" rate 6.4%6.0%6.6%5.9%4.4%5.3%6.9%7.2%4.5%6.6%
Chamber average 7.3%7.5%8.6%7.3%7.1%6.5%6.5%7.0%7.7%6.5%
Difference -0.9-1.5-2.0-1.4-2.7-1.2+0.4+0.2-3.2+0.1
Comparison LowerLowerLowerLowerLowerLower====Lower==
 
2013201420152016201720182019202020212022
Winning side rate (learn more). What percentage of the time (excluding near-unanimous votes) is the legislator on the winning side of a floor vote?
Winning side rate 76%73%74%68%76%73%76%73%83%72%
Chamber average 67%67%67%66%67%66%68%67%66%67%
Difference +9.7+5.6+6.6+2.2+8.7+7.0+7.6+5.5+17+4.6
Comparison HigherHigherHigher==HigherHigherHigherHigherHigherHigherHigher
 
2013201420152016201720182019202020212022
Ideology score (NOMINATE method) (learn more). Using W-NOMINATE algorithm developed by Congressional scholars, I calculate each legislator's relative ideology after each General Session. I describe the method here. Scores have no intrinsic meaning. They are only relative: A legislator with a higher score is to the right ideologically of a legislator with a lower scale. Scores may be compared only within a single chamber and a single year. In most years, a conservative Republican will have a score above 0; a score close to 100 is extreme.
Contact me for scores. They get misinterpreted often enough that I now provide them only to political scientists.
 
2013201420152016201720182019202020212022
Party support score (overall) (learn more). How consistently does Rep. Christofferson support his/her party? That is, what percentage of the time does the legislator vote with the majority of the other members of his/her party? Scores are usually easily above 90%.
Score (overall) 96%95%96%95%96%96%96%95%95%95%
Chamber average 95%94%94%95%95%94%95%95%94%95%
Difference +1.2+1.3+1.7+0.3+0.8+2.4+0.1+0.6+1.6+0.0
Comparison HigherHigherHigher==============
 
2013201420152016201720182019202020212022
Party support score (party-line only) (learn more). This is the same as the "raw" party support score, but we look only at party-line votes when calculating this. A "party-line" vote occurs when the majority of Democrats votes against the majority of Republicans. Although party-line votes are rare, looking at the legislator's party support score in this setting can be revealing.
Score (party-line only) 87%96%96%94%96%93%96%92%86%93%
Chamber average 81%80%82%85%87%83%85%83%85%84%
Difference +5.8+15+14+9.0+8.6+10+12+8.8+1.6+9.0
Comparison HigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigher==Higher

Votes on Rep. Christofferson's bills

Many votes have been held on bills sponsored by Rep. Christofferson. In the interest of space, I display only the most and least divisive votes held on Rep. Christofferson's bills.

Rep. Christofferson's most divisive bills

Listed below are the 10 votes on bills sponsored by Rep. Christofferson that had the closest vote margin (as a percent of the total votes cast). When there are ties, I list the most recent bills first.

Year Sponsor Bill Ayes Nays Margin
(as % of total votes)
Type of vote
2022 Christofferson HB0104S03 12 9 14% Senate/ failed
2022 Christofferson HB0257S01 41 28 19% House/ passed 3rd reading
2021 Christofferson HB0209S04 27 44 24% House/ failed
2022 Christofferson HB0104S03 48 24 33% House/ passed 3rd reading
2022 Christofferson HB0104S03 20 8 43% Senate/ passed 3rd reading
2022 Christofferson HB0104S03 53 21 43% House/ concurs with Senate amendment
2022 Christofferson HB0104S03 21 7 50% Senate/ passed 2nd reading
2020 Christofferson HCR016 13 43 54% House/ floor amendment failed
2022 Christofferson HB0257S01 23 6 59% Senate/ passed 2nd & 3rd readings/ suspension
2016 Christofferson HB0287S01 54 12 64% House/ passed 3rd reading

Rep. Christofferson's least divisive bills

Listed below are the 10 votes on bills sponsored by Rep. Christofferson that had the widest vote margin (as a percent of the total votes cast). When there are ties, I display the most recent bills first.

Year Sponsor Bill Ayes Nays Margin
(as % of total votes)
Type of vote
2022 Christofferson HB0391 27 0 100% Senate/ passed 3rd reading
2022 Christofferson HB0391 68 0 100% House/ passed 3rd reading
2022 Christofferson HB0383S01 29 0 100% Senate/ passed 2nd & 3rd readings/ suspension
2022 Christofferson HB0383S01 68 0 100% House/ passed 3rd reading
2022 Christofferson HB0322S01 25 0 100% Senate/ passed 2nd & 3rd readings/ suspension
2022 Christofferson HB0322S01 70 0 100% House/ passed 3rd reading
2021 Christofferson HB0137S01 69 0 100% House/ concurs with Senate amendment
2021 Christofferson HB0137S01 26 0 100% Senate/ passed 3rd reading
2021 Christofferson HB0137S01 25 0 100% Senate/ passed 2nd reading
2021 Christofferson HB0137S01 70 0 100% House/ passed 3rd reading