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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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Working with the Other Chamber

The House and Senate often work on the same issue simultaneously by introducing companion bills in each chamber. This is the number of bills introduced by each legislator in 2015 that had a companion bill in the other chamber. Working with a sponsor in the other chamber makes a bill more likely to be passed by both the House and Senate.

All Senators
most bills
#1 30 Sen. Orrin Hatch [R-UT]
#100 0 Sen. Michael Bennet [D-CO]
#11 14 Sen. Dean Heller [R-NV]
#11 14 Sen. Mazie Hirono [D-HI]
#11 14 Sen. Sherrod Brown [D-OH]
#14 13 Sen. Benjamin Cardin [D-MD]
#14 13 Sen. John McCain [R-AZ, 1987-2018]
#14 13 Sen. Robert “Bob” Menéndez [D-NJ]
#14 13 Sen. Robert “Rob” Portman [R-OH]
#14 13 Sen. Tom Udall [D-NM]
#19 12 Sen. Amy Klobuchar [D-MN]
#19 12 Sen. Bernard “Bernie” Sanders [I-VT]
#19 12 Sen. Christopher Murphy [D-CT]
#19 12 Sen. Kirsten Gillibrand [D-NY]
#19 12 Sen. Ted Cruz [R-TX]
#2 24 Sen. David Vitter [R-LA, 2005-2016]
#24 11 Sen. Michael Enzi [R-WY]
#24 11 Sen. Pat Roberts [R-KS]
#24 11 Sen. Richard Blumenthal [D-CT]
#24 11 Sen. Sheldon Whitehouse [D-RI]
#28 10 Sen. Jerry Moran [R-KS]
#28 10 Sen. John Barrasso [R-WY]
#28 10 Sen. Maria Cantwell [D-WA]
#28 10 Sen. Rand Paul [R-KY]
#28 10 Sen. Tammy Baldwin [D-WI]
#3 22 Sen. Mark Kirk [R-IL, 2010-2016]
#33 9 Sen. Bill Nelson [D-FL]
#33 9 Sen. Jon Tester [D-MT]
#33 9 Sen. Lisa Murkowski [R-AK]
#33 9 Sen. Marco Rubio [R-FL]
#33 9 Sen. Mike Lee [R-UT]
#33 9 Sen. Patrick “Pat” Toomey [R-PA]
#39 8 Sen. Edward “Ed” Markey [D-MA]
#39 8 Sen. Elizabeth Warren [D-MA]
#39 8 Sen. Jeanne Shaheen [D-NH]
#39 8 Sen. Jeff Merkley [D-OR]
#39 8 Sen. John Thune [R-SD]
#39 8 Sen. John “Jack” Reed [D-RI]
#39 8 Sen. Kelly Ayotte [R-NH, 2011-2016]
#39 8 Sen. Roy Blunt [R-MO]
#39 8 Sen. Susan Collins [R-ME]
#4 19 Sen. Ron Wyden [D-OR]
#48 7 Sen. Bill Cassidy [R-LA]
#48 7 Sen. Charles “Chuck” Schumer [D-NY]
#48 7 Sen. Chris Coons [D-DE]
#48 7 Sen. Cory Booker [D-NJ]
#48 7 Sen. John Boozman [R-AR]
#48 7 Sen. John “Johnny” Isakson [R-GA]
#48 7 Sen. Robert “Bob” Casey [D-PA]
#48 7 Sen. Steve Daines [R-MT]
#5 18 Sen. Barbara Boxer [D-CA, 1993-2016]
#5 18 Sen. Richard Durbin [D-IL]
#56 6 Sen. Brian Schatz [D-HI]
#56 6 Sen. Lamar Alexander [R-TN]
#56 6 Sen. Michael Crapo [R-ID]
#56 6 Sen. Patrick Leahy [D-VT]
#56 6 Sen. Richard Burr [R-NC]
#56 6 Sen. Roger Wicker [R-MS]
#56 6 Sen. Timothy Kaine [D-VA]
#63 5 Sen. Cory Gardner [R-CO]
#63 5 Sen. Deb Fischer [R-NE]
#63 5 Sen. Debbie Stabenow [D-MI]
#63 5 Sen. Jeff Flake [R-AZ]
#63 5 Sen. Thom Tillis [R-NC]
#63 5 Sen. Thomas Carper [D-DE]
#69 4 Sen. Alan “Al” Franken [D-MN, 2009-2017]
#69 4 Sen. Angus King [I-ME]
#69 4 Sen. Daniel Coats [R-IN, 2011-2016]
#69 4 Sen. Gary Peters [D-MI]
#69 4 Sen. Harry Reid [D-NV, 1987-2016]
#69 4 Sen. James Risch [R-ID]
#69 4 Sen. Joe Donnelly [D-IN]
#69 4 Sen. John Hoeven [R-ND]
#69 4 Sen. Ron Johnson [R-WI]
#69 4 Sen. Shelley Capito [R-WV]
#7 16 Sen. Patty Murray [D-WA]
#79 3 Sen. James Lankford [R-OK]
#79 3 Sen. James “Jim” Inhofe [R-OK]
#79 3 Sen. Jefferson “Jeff” Sessions [R-AL, 1997-2017]
#79 3 Sen. Joe Manchin [D-WV]
#79 3 Sen. Tim Scott [R-SC]
#8 15 Sen. Charles “Chuck” Grassley [R-IA]
#8 15 Sen. Dianne Feinstein [D-CA]
#8 15 Sen. John Cornyn [R-TX]
#84 2 Sen. Barbara Mikulski [D-MD, 1987-2016]
#84 2 Sen. Bob Corker [R-TN]
#84 2 Sen. Claire McCaskill [D-MO]
#84 2 Sen. Dan Sullivan [R-AK]
#84 2 Sen. David Perdue [R-GA]
#84 2 Sen. Joni Ernst [R-IA]
#84 2 Sen. Lindsey Graham [R-SC]
#84 2 Sen. Mark Warner [D-VA]
#84 2 Sen. Mike Rounds [R-SD]
#84 2 Sen. Mitch McConnell [R-KY]
#84 2 Sen. Thad Cochran [R-MS, 1979-2018]
#84 2 Sen. Tom Cotton [R-AR]
#96 1 Sen. Benjamin Sasse [R-NE]
#96 1 Sen. Heidi Heitkamp [D-ND]
#96 1 Sen. Martin Heinrich [D-NM]
#96 1 Sen. Richard Shelby [R-AL]
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Companion bills are those that are identified as “identical” by Congress’s Congressional Research Service.

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.