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