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