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Special Interest Groups

Rating Group: The Lugar Center

1993-2018 Bipartisan Index (Lifetime Scores of United States Senators)

State Office District Name Party Rating
Claire McCaskill 55%
Howard Metzenbaum 40%
Barbara Mikulski 40%
Zell Bryan Miller 80%
Carol Moseley Braun 47%
Patrick Moynihan 54%
Frank Murkowski 34%
Ben Nelson 58%
Bill Nelson, Sr. 50%
Don Nickles 34%
Sam Nunn 81%
Barack Obama II 35%
Bob Packwood 61%
Clay Pell, Jr. 33%
Larry Pressler 44%
David Pryor 57%
Mark Pryor 50%
Harry Reid 56%
Donald Riegle, Jr. 37%
Charles Robb 58%
Jay Rockefeller IV 44%
William Roth, Jr. 46%
Ken Salazar 55%
Rick Santorum 39%
Paul Sarbanes 50%
James Sasser 33%
Jeff Sessions III 37%
Paul Simon 43%
Alan Simpson 32%
Gordon Smith 79%
Bob Smith 31%
Olympia Snowe 81%
Arlen Specter 57%
Ted Stevens 46%
Luther Strange III 9%
John Sununu 56%
James Talent 38%
Craig Thomas 34%
Fred Thompson 35%
Strom Thurmond 35%
Robert Torricelli 45%
Mark Udall 38%
David Vitter 29%
George Voinovich 59%
Malcolm Wallop 21%
John Walsh 21%
John Warner 58%
Jim Webb, Jr. 46%
Paul Wellstone 31%
Harris Wofford, Jr. 25%

How to Interpret these Evaluations

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 issues 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.

Most performance evaluations are displayed in a percentage format. However, some organizations present their ratings in the form of a letter grade or endorsement based on voting records, interviews, survey results and/or sources of campaign funding. For consistency and ease in understanding, Project Vote Smart converts all scores into a percentage when possible. Please visit the group's website or call 1-888-VOTESMART for more specific information.

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