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Claire McCaskill's Ratings and Endorsements

Vote Smart displays all known interest group ratings for each candidate and official, regardless of issue or bias.

Keep in mind that ratings done by special interest groups often do not represent a non-partisan stance. In addition, some groups select votes that tend to favor members of one political party over another, rather than choosing votes based solely on issue concerns. Nevertheless, they can be invaluable in showing where an incumbent has stood on a series of votes in the past one or two years, especially when ratings by groups on all sides of an issue are compared. Website links, if available, and descriptions of the organizations offering performance evaluations are accessible by clicking on the name of the group.

With rare exceptions, Vote Smart displays interest group ratings as a 0-100 percentage. While many interest groups use percentages as ratings to begin with, please note that Vote Smart has translated some ratings to a percentage from a different rating system for consistency and ease in understanding. Please visit the group's website, email us at ratings@votesmart.org or call our Voter Information Hotline at 1-888-VOTESMART for more specific information.

70%
2018
9%
2015-2016
0%
2013-2014
33%
2011-2012
0%
2009-2010
0%
2009
25%
2007-2008
20%
2015
100%
2016
100%
2015
100%
2014
100%
2013
100%
2012
100%
2011
100%
2010
100%
2009
100%
2008
100%
2007
0%
2015-2016
0%
2015
0%
2014
0%
2013-2014
0%
2013
0%
2011-2012
0%
2011
0%
2009-2010
0%
2007-2008
100%
2015
38%
2015-2016
50%
2013-2014
40%
2011-2012
0%
2009-2010
83%
2014
90%
2011
40%
2009-2010
52%
2007-2008
64%
2015-2016
64%
2015-2016
60%
2015
67%
2014
67%
2013-2014
67%
2013-2014
67%
2013
33%
2011-2012
33%
2011-2012
100%
2007-2008
29%
2015-2016
29%
2015-2016
20%
2013-2014
20%
2013-2014
40%
2011-2012
40%
2011-2012
60%
2013-2014
25%
2007-2008
33%
2015-2016
22%
2011-2012
0%
2007-2008
0%
2017-2018
0%
2011
18%
2009
100%
2013-2014
100%
2012-2013
67%
2015-2016
62%
2015
63%
2013-2014
44%
2012
43%
2011-2012
8%
2009-2010
15%
2007-2008
28
2007-2008
100%
2013-2014
100%
2013-2014
0%
2013-2014
0%
2011-2012
75%
2011-2012
57%
2011
11%
2009-2010
20%
2007-2008
50%
2011
50%
2009-2010
50%
2007-2008
75%
2010
75%
2010
0%
2007-2008
80%
2007
46%
2016
46%
2016
89%
2007
9%
2017
9%
2017
40%
2015-2016
40%
2015-2016
70%
2015-2016
76%
2015
93%
2013-2014
75%
2011-2012
87%
2009-2010
64%
2007-2008
71
2007
53%
2011
50%
2010
90%
2009
70
2008
80
2007
30%
2015
0%
2013
63%
2012
50%
2006-2012
50%
2006-2012
95%
2015-2016
95%
2015-2016
100%
2014
88%
2013-2014
88%
2013-2014
76%
2011-2012
76%
2011-2012
80%
2009-2010
80%
2009-2010
85%
2007-2008
85%
2007-2008
0%
2014
0%
2014
94%
2007-2008
8%
2017-2018
30%
2015-2016
30%
2015-2016
22%
2015-2016
22%
2015-2016
20%
2015
33%
2015
19%
2014
18%
2014
17%
2014
18%
2014
18%
2011-2012
18%
2011-2012
17%
2011-2012
17%
2011-2012
8%
2009-2010
29%
2007-2008
29%
2007-2008
16%
2007
9%
2015-2016
0%
2013-2014
33%
2011-2012
0%
2009-2010
0%
2009
25%
2007-2008
5%
2011-2012
8%
2011
9%
2009-2010
27%
2007-2008
8%
2016
10%
2014
0%
2013-2014
0%
2013-2014
0%
2013
0%
2013
0%
2012
0%
2012
33%
2011
33%
2011
0%
2010
0%
2010
26%
2009
26%
2009
12%
2008
12%
2008
47%
2007
47%
2007
18%
2009-2010
16%
2007
16%
2007
5%
2015-2016
5%
2014
11%
2011-2012
40%
2001-2010
40%
2001-2010
53%
2013
53%
2013
47%
2013
47%
2013
0%
2012
38%
2012
38%
2012
48%
2011
48%
2011
51%
2011
51%
2011
42%
2011
42%
2011
44%
2010
44%
2010
0%
2010
0%
2009
40%
2009
40%
2009
53%
2008
53%
2008
48.2%
2008
48.2%
2008
42.7%
2007
42.7%
2007
36%
2007
36%
2007
19%
2011-2012
65%
2009-2010
18
2009-2010
26%
2012
13%
2015-2016
13%
2015-2016
20%
2015
17%
2014
5%
2014
8%
2013-2014
8%
2013-2014
10%
2013
23%
2011-2012
23%
2011-2012
15%
2011
10%
2011
0%
2010
20%
2009-2010
20%
2009-2010
18%
2009-2010
18%
2009-2010
23%
2009-2010
23%
2009-2010
25%
2009
50%
2009
0%
2009
20%
2007-2008
20%
2007-2008
30%
2007
100%
2017
100%
2016
86%
2015
100%
2014
100%
2013
100%
2012
82%
2011
50%
2011-2012
19%
2011-2012
65%
2009-2010
18
2009-2010
48%
2009-2010
64%
2009
31%
2007-2008
0%
2013-2014
25%
2011-2012
25%
2009-2010
32%
2007-2008
92%
2009-2012
100%
2009-2010
70%
2007-2008
72%
2007
40%
2001-2010
40%
2001-2010
55%
2011
55%
2011
70%
2009
70%
2009
50%
2008
50%
2008
45%
2007
45%
2007
53%
2011
50%
2010
90%
2009
70
2008
80
2007
53%
2013
53%
2013
86%
2011-2012
96%
2009
15%
2007-2008
32%
2015-2016
32%
2015-2016
70%
2018
0%
2007
89%
2007
81%
2007-2008
60%
2013-2014
0
2007
100%
2014
67%
2017-2018
67%
2017-2018
38%
2013-2014
38%
2013-2014
45%
2011-2012
45%
2011-2012
30%
2015
0%
2013
63%
2012
50%
2011-2012
50%
2011-2012
0%
2007-2008
0%
2007-2008
77%
2015-2016
77%
2015-2016
50%
2015
0%
2014
71%
2013
100%
2011-2012
100%
2011-2012
81%
2011
86%
2009
80%
2008
64%
2015-2016
64%
2015-2016
60%
2015
67%
2014
67%
2013-2014
67%
2013-2014
67%
2013
33%
2011-2012
33%
2011-2012
50%
2006-2012
50%
2006-2012
79%
2018
79%
2017-2018
79%
2017
74%
2017
74%
2016
82%
2016
79%
2015-2016
65%
2015
71%
2014
67%
2013-2014
77%
2013
73%
2013
72%
2012
50%
2012
68%
2011-2012
91%
2011
78%
2011
43%
2010
75%
2010
72%
2009-2010
91%
2009
77%
2007-2008
73%
2007
83%
2009-2010
75\%
2017-2018
100%
2013-2014
71%
2011-2012
50%
2008-2011
50%
2008-2011
100%
2014
17%
2017-2018
17%
2017-2018
30%
2015-2016
30%
2015-2016
22%
2015-2016
22%
2015-2016
20%
2015
33%
2015
18%
2014
18%
2014
19%
2014
17%
2014
18%
2011-2012
18%
2011-2012
17%
2011-2012
17%
2011-2012
8%
2009-2010
29%
2007-2008
29%
2007-2008
16%
2007
10%
2007
15%
2012
15%
2012
17%
2011
17%
2011
5%
2010
5%
2010
31%
2009
31%
2009
36%
2008
36%
2008
33%
2007
33%
2007
16%
2007
16%
2007
5%
2015-2016
5%
2014
11%
2011-2012
18%
2009
51%
2011
51%
2011
46%
2010
46%
2010
53%
2010
53%
2010
54%
2009
54%
2009
49%
2008
49%
2008
47%
2007
47%
2007
6%
2013-2014
17%
2011-2012
23%
2009-2010
26%
2016
21%
2015
17%
2013
18%
2012
20%
2011
25%
2009
F
2008
D
2007
16%
2013
15%
2013
15%
2013
11%
2009
50%
2009
16%
2007
34%
2007
15%
2018
3%
2017
15%
2017
17%
2016
15%
2016
17%
2015
9%
2015
7%
2013
17%
2013
26%
2011
18%
2010
17%
2009
15%
2008
40%
2007
65%
2017
49%
2011
49%
2011
45%
2009
45%
2009
49%
2008
49%
2008
51%
2007
51%
2007
17%
2007-2008
81%
2015
71%
2013-2014
71%
2013-2014
87%
2013-2014
87%
2013-2014
79%
2013-2014
79%
2013-2014
67%
2013-2014