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Chuck Grassley's Ratings and Endorsements

Office:

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.

100%
2017-2018
100%
2015-2016
100%
2013-2014
100%
2011-2012
100%
2009-2010
100%
2009
100%
2007-2008
100%
2005-2006
100%
2003-2004
100%
2003
87%
2001-2002
84%
1999-2000
0%
2019
6%
2017
0%
2016
0%
2015
0%
2014
0%
2013
0%
2012
0%
2011
0%
2010
0%
2009
0%
2008
0%
2007
0%
2006
0%
2005
0%
2004
0%
2003
0%
2001
20%
2000
0%
1999
0%
1997
0%
1996
100%
2019-2020
100%
2019
100%
2017-2018
100%
2015-2016
100%
2015
100%
2014
100%
2013-2014
100%
2013
100%
2011-2012
100%
2011
100%
2009-2010
100%
2007-2008
100%
2005-2006
100%
2003-2004
100%
2001-2002
100%
1999-2000
100%
1999
100%
1997-1998
100%
1997
100%
1996
100%
2017-2018
68%
2015-2016
75%
2013-2014
83%
2011-2012
100%
2009-2010
100%
2002
50%
2014
90%
2011
50%
2009-2010
64%
2007-2008
88%
2005-2006
100%
2000
80%
1999
100%
1995-1996
89%
1993-1994
100%
2020
100%
2020
33%
2017
30%
2015-2016
30%
2015-2016
40%
2015
33%
2014
33%
2013-2014
33%
2013-2014
33%
2013
33%
2011-2012
33%
2011-2012
20%
2007-2008
89%
2001-2002
89%
2001-2002
60%
1991-1992
70%
2012
17%
2009-2010
17%
2009-2010
91
2007-2008
91
2007-2008
33%
2005-2006
33%
2005-2006
44%
2003-2004
44%
2003-2004
50%
2001-2002
50%
2001-2002
83%
1999-2000
83%
1999-2000
60%
1998
71%
1997
53%
1996
40%
1995
56%
1994
56%
1993
0%
2018
0%
2005
0%
2003-2004
0%
2001-2002
0%
2019-2020
13%
2017-2018
13%
2017-2018
0%
2015-2016
40%
2013-2014
40%
2013-2014
40%
2011-2012
40%
2011-2012
0%
2003
33%
2001-2002
33%
2001-2002
25%
2000
100%
2019-2020
100%
2019-2020
0%
2003
0%
2003
33%
2001-2002
33%
2001-2002
33%
2001-2002
33%
2001-2002
34%
2020
33%
2017
30%
2015-2016
30%
2015-2016
40%
2015
33%
2014
33%
2013-2014
33%
2013-2014
33%
2013
33%
2011-2012
33%
2011-2012
0%
2020
0%
2019
12%
2018
0%
2017
0%
2015-2016
0%
2015
12%
2013-2014
0%
2013
42%
2011-2012
20%
2011
0%
2009-2010
0%
2009
17%
2007-2008
0%
2007
20%
2005-2006
20%
2005
0%
2004
0%
2003
33%
2001-2002
20%
1999-2000
25%
1999
50%
1995-1996
25%
1995
15%
1993-1994
0%
2003
0%
2003
33%
2002
10%
2013
10%
2013
80%
2013
80%
2013
92%
2013
92%
2013
89%
2013
89%
2013
12%
2013
12%
2013
87%
2013
87%
2013
18%
2013
18%
2013
26%
2012
26%
2012
75%
2012
75%
2012
10%
2012
10%
2012
85%
2012
85%
2012
26%
2012
26%
2012
71%
2012
71%
2012
35%
2012
35%
2012
62%
2012
62%
2012
21%
2011
21%
2011
26%
2011
26%
2011
22%
2011
22%
2011
79%
2011
79%
2011
10%
2011
10%
2011
78%
2011
78%
2011
71%
2011
71%
2011
90%
2011
90%
2011
21%
2010
21%
2010
0%
2010
74%
2010
74%
2010
34%
2010
34%
2010
65%
2010
65%
2010
24%
2010
24%
2010
72%
2010
72%
2010
76%
2010
76%
2010
73%
2009
73%
2009
69%
2009
69%
2009
22%
2009
22%
2009
74%
2009
74%
2009
76%
2009
76%
2009
29%
2009
29%
2009
24%
2009
24%
2009
26%
2009
26%
2009
0%
2008
18%
2008
18%
2008
79%
2008
79%
2008
34%
2008
34%
2008
84%
2008
84%
2008
82.3%
2008
82.3%
2008
65%
2008
65%
2008
0%
2008
80%
2007
80%
2007
42%
2007
42%
2007
57%
2007
57%
2007
7%
2007
22.8%
2007
22.8%
2007
17%
2007
17%
2007
92%
2007
92%
2007
77.2%
2007
77.2%
2007
77.3%
2006
77.3%
2006
0%
2006
67%
2006
67%
2006
69%
2006
69%
2006
28%
2006
28%
2006
26%
2006
26%
2006
22.7%
2006
22.7%
2006
82%
2006
82%
2006
68%
2005
68%
2005
64%
2005
64%
2005
0%
2005
75%
2005
75%
2005
74%
2005
74%
2005
23%
2005
23%
2005
25%
2005
25%
2005
31%
2005
31%
2005
19%
2004
19%
2004
61%
2004
61%
2004
33%
2004
33%
2004
71%
2004
71%
2004
29%
2004
29%
2004
70%
2004
70%
2004
82%
2003
82%
2003
78%
2003
78%
2003
0%
2003
87%
2003
87%
2003
0%
2003
0%
2003
59%
2003
59%
2003
14%
2003
14%
2003
79%
2002
79%
2002
32%
2002
32%
2002
0%
2002
0%
2002
66%
2002
66%
2002
21%
2002
21%
2002
76%
2002
76%
2002
62%
2002
62%
2002
0%
2001
72%
2001
72%
2001
79%
2001
79%
2001
77%
2001
77%
2001
7%
2001
17%
2001
17%
2001
64%
2000
64%
2000
67%
2000
67%
2000
32%
2000
32%
2000
27%
2000
27%
2000
10%
2000
10%
2000
81%
2000
81%
2000
10%
1999
10%
1999
84%
1999
84%
1999
75%
1999
75%
1999
58%
1999
58%
1999
19%
1999
19%
1999
41%
1999
41%
1999
51%
1998
51%
1998
26%
1998
26%
1998
48%
1998
48%
1998
71%
1998
71%
1998
12%
1998
12%
1998
79%
1998
79%
1998
49%
1996
49%
1996
26%
1996
26%
1996
72%
1996
72%
1996
69%
1996
69%
1996
0%
1996
50%
1996
50%
1996
70%
2021-2022
70%
2021-2022
84%
2020
75%
2019-2020
75%
2019-2020
85%
2018
100%
2017-2018
100%
2017-2018
87%
2016
90%
2015-2016
90%
2015-2016
89%
2015
84%
2015
85%
2014
89%
2014
85%
2011-2012
85%
2011-2012
77%
2011-2012
77%
2011-2012
96%
2009-2010
96%
2009-2010
76%
2007-2008
76%
2007-2008
75%
2007
43%
2006
100%
2014
100%
2014
67%
2017-2018
67%
2015-2016
55%
2013-2014
78
2011-2012
60%
2009-2010
70%
2007-2008
100%
2013-2014
100%
2007-2008
100%
2005-2006
100%
2003-2004
100
2007
100%
2019-2020
100%
2017-2018
100%
2015-2016
100%
2011-2012
80%
2007-2008
100%
2003-2004
100%
2003
89%
2001-2002
100%
2000
100%
1999
100%
1998
100%
1997
100%
1995-1996
100%
1995
83%
2021-2022
83%
2019-2020
72%
2019-2020
100%
2017-2018
77%
2015-2016
77%
2015
100%
2013-2014
83%
2013-2014
75%
2013-2014
56%
2013-2014
74%
2013-2014
77%
2013-2014
57%
2013-2014
70%
2009-2010
66%
2007-2008
87%
2005-2006
85%
2003-2004
83%
2001-2002
100%
2017-2018
96%
2009
100%
2009-2010
100%
2005
100%
2003
100%
2003
33%
2013-2014
50%
2012-2013
91%
2017-2018
88%
2015-2016
86%
2015
88%
2013-2014
81%
2012
79%
2011-2012
77%
2009-2010
85%
2007-2008
95%
2005-2006
100%
2003-2004
94%
2001-2002
100%
2019-2020
100%
2019-2020
100%
2017-2018
100%
2015-2016
100%
2015-2016
100%
2013-2014
100%
2013
100%
2011-2012
100%
2011
100%
2009-2010
100
2007-2008
100%
2005-2006
100%
2005
100%
2003-2004
100%
2003
100%
2001-2002
100%
2001
100%
1999-2000
86%
1997-1998
100%
1997
90%
1995-1996
100%
2015-2016
100%
2015-2016
92%
1999-2006
80%
1999-2004
88%
2005-2006
100%
2003-2004
100%
2019-2020
100%
2017-2018
89%
2015-2016
100%
2013-2014
0%
2013-2014
0%
2013-2014
100%
2011-2012
75%
2011-2012
85%
2011
100%
2009-2010
100%
2007-2008
100%
2005-2006
100%
2003-2004
100%
2003
100%
2019-2020
75%
2010
75%
2010
0%
2017-2018
0%
2017-2018
0%
2015-2016
0%
2015-2016
0%
2013-2014
0%
2013-2014
8%
2005-2006
8%
2005-2006
0%
2003-2004
0%
2003-2004
0%
2003
0%
2003
15%
2001-2002
15%
2001-2002
17%
1999-2000
17%
1999-2000
33%
1997-1998
33%
1997-1998
12%
1997
12%
1997
14%
1995-1996
14%
1995-1996
91%
2020
85%
2019
87%
2019
80%
2018
85%
2018
85%
2017
86%
2017
100%
2016
85%
2016
79%
2015
84%
2015
85%
2014
88%
2014
84%
2013
75%
2013
88%
2012
85%
2012
91%
2011
84%
2010
91%
2010
71%
2009
100%
2008
85%
2008
64%
2007
92%
2006
100%
2005
100%
2004
100%
2003
95%
2002
100%
2001
100%
2000
94%
1999
83%
1998
100%
1997
92%
1996
0%
2019-2020
0%
2019-2020
0%
2017-2018
0%
2017-2018
8%
2016
8%
2016
0%
2001
0%
2001
0%
2019
40%
2017-2018
40%
2017-2018
7%
2017
7%
2017
40%
2015-2016
40%
2015-2016
0%
2021-2022
0%
2019-2020
0%
2019-2020
0%
2017-2018
0%
2017-2018
8%
2016
8%
2016
0%
2001
0%
2001
21%
2011
30
2008
20
2007
0%
2005
14%
2004
67%
2003
100%
2006-2012
100%
2006-2012
0%
2019-2020
0%
2019-2020
0%
2017-2018
0%
2017-2018
0%
2015-2016
0%
2015-2016
0%
2014
0%
2013-2014
0%
2013-2014
15%
2011-2012
15%
2011-2012
0%
2009-2010
0%
2009-2010
20%
2007-2008
20%
2007-2008
0%
2005-2006
0%
2005-2006
0%
2003-2004
0%
2003-2004
0%
2001-2002
0%
2001-2002
0%
2001
0%
1999-2000
0%
1999-2000
0%
1999
17%
1997-1998
17%
1997-1998
11%
1995-1996
11%
1995-1996
0%
2007
33%
2007
0%
2007
50%
2007
100%
2014
100%
2014
7%
2019
9%
2017-2018
11%
2017
13%
2015-2016
14%
2015
11%
2013
0%
2011
23%
2009-2010
33%
2009
45%
2007-2008
47%
2007
11%
2005-2006
5%
2005
12%
2003-2004
7%
2003
21%
2001-2002
18%
2001
20%
2000
20%
1999
20%
1995-1996
0%
1991-1992
8%
2001-2002
95%
2013
92%
2013
90%
2013
50%
2009
86%
2009
59%
2007
82%
2007
70%
2005
83%
2005
95%
2005
83%
2004
90
2003
90
2003
90
2003
83
2002
83
2002
83
2002
88%
2001
80%
2000
100%
2007-2008