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Senator Margaret Dayton
Utah legislator profile

Years served in the Utah legislature

First session in legislature: 1997
Most recent year of service for which data are available: 2018
Total sessions served in Utah House as of 2018: 10
Total sessions served in Utah Senate as of 2018: 12

How to read the statistical profile

I present a variety of statistics about Sen. Margaret Dayton'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.

Sen. Dayton's statistical profile

Service summary. Service prior to 2007 (if any) is not shown here. My database goes back only to 2007.
  Chamber SenateSenateSenateSenateSenateSenateSenateSenateSenateSenateSenateSenate
  District S15S15S15S15S15S15S15S15S15S15S15S15
Leadership NoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNone
Years in chamber 123456789101112
Years comparison LowerLowerLower==============HigherHigher
Bills sponsored (learn more) Bills written and promoted by the legislator in his/her own chamber.
Introduced by Dayton 611106811111314121013
Chamber average
Difference -3.6+1.2+1.0-2.9-2.6+1.2+0.2+2.4+2.6+1.9-0.6+3.4
Comparison Lower====LowerLower====HigherHigher====Higher
Bill passage rate (learn more). What percent of Sen. Dayton's sponsored bills pass and are officially "enrolled"? (I ignore whether the governor signed or vetoted the bill.)
Bills introduced 611106811111314121013
Bills passed 59938109101110912
Passage rate 83.3%81.8%90.0%50.0%100.0%90.9%81.8%76.9%78.6%83.3%90.0%92.3%
Chamber average 62.5%68.0%62.8%68.6%70.2%71.7%65.4%69.7%68.2%67.6%73.7%83.3%
Difference +20.8+13.8+27.2-18.6+29.8+19.2+16.4+7.2+10.4+15.7+16.3+9.0
Comparison HigherHigherHigherLowerHigherHigherHigherHigher==HigherHigherHigherHigher
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 23182021221313513192613
Chamber average 11.611.511.111.011.411.811.111.512.312.813.414.2
Difference +11.4+6.5+8.9+10.0+10.6+1.2+1.9-6.5+0.7+6.2+12.6-1.2
Comparison HigherHigherHigherHigherHigherHigherHigherHigherHigher====Lower==HigherHigherHigher==
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 202731564249522543573874
Total votes held 820806807786940890940840951860913926
Absentee rate 2.4%3.3%3.8%7.1%4.5%5.5%5.5%3.0%4.5%6.6%4.2%8.0%
Chamber average 8.9%9.6%11.1%11.9%14.4%9.9%11.1%11.5%11.7%14.0%10.4%13.1%
Difference -6.5-6.3-7.3-4.8-9.9-4.4-5.6-8.5-7.2-7.4-6.2-5.1
Comparison LowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLower
"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 7266596354809786127966089
Total votes held 820806807786940890940840951860913926
"Nay" rate 8.8%8.2%7.3%8.0%5.7%9.0%10.3%10.2%13.4%11.2%6.6%9.6%
Chamber average 4.1%4.1%4.1%4.6%3.4%4.8%3.7%3.6%4.8%3.7%2.8%3.2%
Difference +4.7+4.1+3.2+3.4+2.3+4.2+6.6+6.6+8.6+7.5+3.8+6.4
Comparison HigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigher
Influence or "floor power" (learn more). What percentage of the time is the legislator on the winning side of a floor vote?
Floor power score 59.0%63.9%66.2%62.3%79.0%60.8%50.0%35.2%43.9%61.7%59.0%55.8%
Chamber average 69.8%69.1%69.6%70.2%71.7%70.5%68.6%67.3%68.5%66.8%67.9%68.2%
Difference -10.8-5.2-3.4-7.9+7.3-9.7-18.6-32.1-24.6-5.1-8.9-12.4
Comparison Lower====Lower==LowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLower
Ideology score 1 (from interest group ratings). Half a dozen interest groups release ratings of each legislator after each legislative session. I rescale them all from 0 (most liberal) to 100 (most conservative) and average them together, resulting in the numbers reported here.
Average rating 80.684.786.388.787.785.681.2nanananana
Chamber average 57.750.060.569.373.559.264.3nanananana
Difference +22.9+34.7+25.8+19.4+14.2+26.4+16.9nanananana
Comparison HigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHighernanananana
Ideology score 2 (NOMINATE method) (learn more). Using a widely accepted scaling method, I calculate each legislator's ideology score (called a "NOMINATE" score) after each legislative session. I describe the method here. Scores have no intrinsic meaning; they are useful only for comparing two legislators. A legislator with a higher score is more to the right ideologically of a legislator with a lower scale. In most years, a conservative Republican will have a score above 0; a score close to 100 is extreme.
NOMINATE score 97.889.899.097.597.393.876.198.097.699.587.497.6
Chamber average 0.45.536.628.
Difference +97.4+84.3+62.4+69.5+53.3+61.7+51.2+65.4+71.4+63.8+62.0+73.9
Comparison HigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigherHigher
Party support score (overall) (learn more). How consistently does Sen. Dayton 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) 91.9%92.3%93.3%93.5%94.8%91.2%90.5%90.6%86.5%89.5%93.4%89.9%
Chamber average 96.7%97.1%97.2%97.1%97.8%96.5%97.0%96.7%95.9%97.1%97.8%97.3%
Difference -4.8-4.8-3.9-3.6-3.0-5.3-6.5-6.1-9.4-7.6-4.4-7.4
Comparison LowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLowerLower
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) 90.9%87.5%96.5%96.5%95.8%93.5%92.0%82.5%76.6%98.1%89.1%84.2%
Chamber average 83.4%84.8%89.5%88.5%91.2%88.0%85.0%84.1%82.5%87.1%86.4%85.4%
Difference +7.5+2.7+7.0+8.0+4.6+5.5+7.0-1.6-5.9+11.0+2.7-1.2
Comparison HigherHigherHigherHigherHigherHigherHigherHigher==LowerHigherHigher==

Votes on Sen. Dayton's bills

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

Sen. Dayton's most divisive bills

Listed below are the 10 votes on bills sponsored by Sen. Dayton 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
2011 Dayton SB0177 33 36 4.3% House/ failed
2008 Dayton SB0162 38 33 7.0% House/ passed 3rd reading
2014 Dayton SB0053S02 39 32 9.9% House/ passed 3rd reading
2011 Dayton SB0177 40 27 19.4% House/ passed 3rd reading
2010 Dayton SB0077S01 15 10 20.0% Senate/ passed 2nd reading
2010 Dayton SB0077S01 17 11 21.4% Senate/ passed 3rd reading
2007 Dayton SB0128 45 27 25.0% House/ passed 3rd reading
2010 Dayton SB0077S01 25 43 26.5% House/ failed
2010 Dayton SB0160 47 25 30.6% House/ passed 3rd reading
2010 Dayton SB0011 19 10 31.0% Senate/ passed 3rd reading

Sen. Dayton's least divisive bills

Listed below are the 10 votes on bills sponsored by Sen. Dayton 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
2018 Dayton SJR013 66 0 100.0% House/ passed 3rd reading
2018 Dayton SJR013 24 0 100.0% Senate/ passed 3rd reading
2018 Dayton SB0220 71 0 100.0% House/ passed 3rd reading
2018 Dayton SB0220 21 0 100.0% Senate/ passed 3rd reading
2018 Dayton SB0197 68 0 100.0% House/ passed 3rd reading
2018 Dayton SB0197 26 0 100.0% Senate/ passed 3rd reading
2018 Dayton SB0193 68 0 100.0% House/ passed 3rd reading
2018 Dayton SB0193 25 0 100.0% Senate/ passed 3rd reading
2018 Dayton SB0193 25 0 100.0% Senate/ passed 2nd reading
2018 Dayton SB0168 69 0 100.0% House/ passed 3rd reading