Chuck Grassley
Party: Republican
Chamber: Senate
State: Iowa
| Year | Grade | Score | Rank |
|---|---|---|---|
| 2023 | B+ | 77% | 5 |
| 2022 | C+ | 70% | 34 |
| 2021 | B- | 79% | 30 |
| 2020 | D | 39% | 32 |
| 2019 | C- | 45% | 26 |
| 2018 | A | 70% | 8 |
| 2017 | B+ | 82% | 19 |
| 2016 | C+ | 63% | 29 |
| 2013 | B+ | 87% | 15 |
| 2012 | B- | 73% | 26 |
| 2011 | B+ | 86% | 23 |
| 2010 | B+ | 93% | 33 |
| 2009 | B+ | 88% | 19 |
| 2008 | B- | 56% | 22 |
| 2007 | C | 52% | 40 |
| 2006 | B+ | 78% | 30 |
| 2005 | B+ | 71% | 24 |
| 2004 | B | 69% | 31 |
| 2003 | B- | 72% | 34 |
| 2002 | B | 64% | 21 |
| 2001 | B | 78% | 35 |
| 2000 | B | 74% | 23 |
| 1999 | A | 78% | 21 |
| 1998 | B- | 56% | 41 |
| 1997 | A | 75% | 34 |
| 1996 | A | 77% | 8 |
| 1995 | A | 90% | 6 |
| 1994 | B | 73% | 9 |
| 1993 | A | 75% | 21 |
| 1992 | B | 62% | 20 |