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2015 Report Cards: All Senators

These special year-end statistics dissect the legislative records of Members of Congress during the 2015 legislative year (Jan 6, 2015-Dec 31, 2015), looking at Members who served at the end of that period. This page was last updated on Jan 9, 2016.

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Government Transparency

GovTrack looked at whether legislators supported any of the government transparency, accountability, and effectiveness bills that we identified in 2015. We gave a score to each legislator based on one point for cosponsoring and three points for sponsoring any of these bills.

All Senators
most often
#1 11 Sen. Claire McCaskill [D-MO]
#13 4 Sen. Alan “Al” Franken [D-MN, 2009-2017]
#13 4 Sen. Gary Peters [D-MI]
#13 4 Sen. Heidi Heitkamp [D-ND]
#13 4 Sen. John Cornyn [R-TX]
#13 4 Sen. Jon Tester [D-MT]
#13 4 Sen. Kirsten Gillibrand [D-NY]
#13 4 Sen. Rand Paul [R-KY]
#13 4 Sen. Sheldon Whitehouse [D-RI]
#2 8 Sen. Michael Bennet [D-CO]
#21 3 Sen. Amy Klobuchar [D-MN]
#21 3 Sen. Barbara Boxer [D-CA, 1993-2016]
#21 3 Sen. Barbara Mikulski [D-MD, 1987-2016]
#21 3 Sen. Benjamin Cardin [D-MD]
#21 3 Sen. Bernard “Bernie” Sanders [I-VT]
#21 3 Sen. Christopher Murphy [D-CT]
#21 3 Sen. Cory Booker [D-NJ]
#21 3 Sen. David Vitter [R-LA, 2005-2016]
#21 3 Sen. Elizabeth Warren [D-MA]
#21 3 Sen. Jeff Merkley [D-OR]
#21 3 Sen. Joni Ernst [R-IA]
#21 3 Sen. Martin Heinrich [D-NM]
#21 3 Sen. Mazie Hirono [D-HI]
#21 3 Sen. Robert “Bob” Menéndez [D-NJ]
#21 3 Sen. Sherrod Brown [D-OH]
#21 3 Sen. Tammy Baldwin [D-WI]
#3 7 Sen. James Lankford [R-OK]
#3 7 Sen. Patrick Leahy [D-VT]
#3 7 Sen. Tom Udall [D-NM]
#37 2 Sen. Brian Schatz [D-HI]
#37 2 Sen. Charles “Chuck” Schumer [D-NY]
#37 2 Sen. Chris Coons [D-DE]
#37 2 Sen. Deb Fischer [R-NE]
#37 2 Sen. Edward “Ed” Markey [D-MA]
#37 2 Sen. Joe Manchin [D-WV]
#37 2 Sen. John “Jack” Reed [D-RI]
#37 2 Sen. Mark Kirk [R-IL, 2010-2016]
#37 2 Sen. Mark Warner [D-VA]
#37 2 Sen. Robert “Rob” Portman [R-OH]
#37 2 Sen. Susan Collins [R-ME]
#37 2 Sen. Timothy Kaine [D-VA]
#49 1 Sen. Bill Nelson [D-FL]
#49 1 Sen. Cory Gardner [R-CO]
#49 1 Sen. Debbie Stabenow [D-MI]
#49 1 Sen. Dianne Feinstein [D-CA]
#49 1 Sen. Harry Reid [D-NV, 1987-2016]
#49 1 Sen. Joe Donnelly [D-IN]
#49 1 Sen. John McCain [R-AZ]
#49 1 Sen. Lisa Murkowski [R-AK]
#49 1 Sen. Maria Cantwell [D-WA]
#49 1 Sen. Michael Enzi [R-WY]
#49 1 Sen. Patty Murray [D-WA]
#49 1 Sen. Richard Blumenthal [D-CT]
#49 1 Sen. Robert “Bob” Casey [D-PA]
#49 1 Sen. Roger Wicker [R-MS]
#49 1 Sen. Ron Wyden [D-OR]
#49 1 Sen. Steve Daines [R-MT]
#49 1 Sen. Thad Cochran [R-MS, 1979-2018]
#49 1 Sen. Tim Scott [R-SC]
#6 6 Sen. Kelly Ayotte [R-NH, 2011-2016]
#6 6 Sen. Ron Johnson [R-WI]
#67 0 Sen. Benjamin Sasse [R-NE]
#67 0 Sen. Bill Cassidy [R-LA]
#67 0 Sen. Bob Corker [R-TN]
#67 0 Sen. Dan Sullivan [R-AK]
#67 0 Sen. Daniel Coats [R-IN, 2011-2016]
#67 0 Sen. David Perdue [R-GA]
#67 0 Sen. Dean Heller [R-NV]
#67 0 Sen. James Risch [R-ID]
#67 0 Sen. James “Jim” Inhofe [R-OK]
#67 0 Sen. Jeff Flake [R-AZ]
#67 0 Sen. Jefferson “Jeff” Sessions [R-AL, 1997-2017]
#67 0 Sen. Jerry Moran [R-KS]
#67 0 Sen. John Barrasso [R-WY]
#67 0 Sen. John Boozman [R-AR]
#67 0 Sen. John Hoeven [R-ND]
#67 0 Sen. John Thune [R-SD]
#67 0 Sen. John “Johnny” Isakson [R-GA]
#67 0 Sen. Lamar Alexander [R-TN]
#67 0 Sen. Lindsey Graham [R-SC]
#67 0 Sen. Marco Rubio [R-FL]
#67 0 Sen. Michael Crapo [R-ID]
#67 0 Sen. Mike Lee [R-UT]
#67 0 Sen. Mike Rounds [R-SD]
#67 0 Sen. Mitch McConnell [R-KY]
#67 0 Sen. Orrin Hatch [R-UT]
#67 0 Sen. Pat Roberts [R-KS]
#67 0 Sen. Patrick “Pat” Toomey [R-PA]
#67 0 Sen. Richard Burr [R-NC]
#67 0 Sen. Richard Shelby [R-AL]
#67 0 Sen. Roy Blunt [R-MO]
#67 0 Sen. Shelley Capito [R-WV]
#67 0 Sen. Ted Cruz [R-TX]
#67 0 Sen. Thom Tillis [R-NC]
#67 0 Sen. Tom Cotton [R-AR]
#8 5 Sen. Angus King [I-ME]
#8 5 Sen. Charles “Chuck” Grassley [R-IA]
#8 5 Sen. Jeanne Shaheen [D-NH]
#8 5 Sen. Richard Durbin [D-IL]
#8 5 Sen. Thomas Carper [D-DE]
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Additional Notes

The Speaker’s Votes: Missed votes are not computed for the Speaker of the House. According to current House rules, the Speaker of the House is not required to vote in “ordinary legislative proceedings.” In practice this means the Speaker of the House rarely votes but is not considered absent.

Leadership/Ideology: The leadership and ideology scores are not displayed for Members of Congress who introduced fewer than 10 bills, or, for ideology, for Members of Congress that have a low leadership score, as there is usually not enough data in these cases to compute reliable leadership and ideology statistics.

Missing Bills: We exclude bills from some statistics where the sponsor’s original intent is not in the final bill because the bill’s text was replaced in whole with unrelated provisions (i.e. it became a vehicle for passage of unrelated provisions).

Ranking Members (RkMembs): The chair of a committee is always selected from the political party that holds the most seats in the chamber, called the “majority party”. The “ranking member” (sometimes “RkMembs”) is the title given to the senior-most member of the committee not in the majority party.

Freshmen/Sophomores: Freshmen and sophomores are Members of Congress whose first term (in the same chamber at the end of 2015) was the 114th Congress (freshmen) or 113th (sophomores). Members of Congress who took office within the last few months of a Congress are considered freshmen in the next Congress as well.