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2013 Report Cards: All Senators

These special year-end statistics dissect the legislative records of Members of Congress during the 2013 legislative year (Jan 3, 2013-Dec 26, 2013), looking at Members who served at the end of that period. This page was last updated on Dec 1, 2014.

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Joining Bipartisan Bills

In this era of partisanship, it is encouraging to see Members of Congress working across the aisle. This is the percent of bills cosponsored by each legislator which were introduced by a member of the other party.

All Senators
most often
#1 72.9% Sen. Susan Collins [R-ME]
#10 48.4% Sen. Lamar Alexander [R-TN]
#11 48.1% Sen. Thad Cochran [R-MS, 1979-2018]
#12 47.7% Sen. Richard Burr [R-NC]
#13 47.4% Sen. Lindsey Graham [R-SC]
#14 46.2% Sen. John “Johnny” Isakson [R-GA]
#15 46.1% Sen. Joe Manchin [D-WV]
#16 44.4% Sen. Bob Corker [R-TN]
#16 44.4% Sen. Richard Shelby [R-AL]
#18 44.0% Sen. Patrick “Pat” Toomey [R-PA]
#19 43.8% Sen. Mitch McConnell [R-KY]
#2 69.2% Sen. Lisa Murkowski [R-AK]
#20 43.4% Sen. Marco Rubio [R-FL]
#21 42.4% Sen. John McCain [R-AZ, 1987-2018]
#22 42.0% Sen. Roger Wicker [R-MS]
#23 41.8% Sen. John Hoeven [R-ND]
#24 41.4% Sen. Michael Crapo [R-ID]
#25 39.4% Sen. Orrin Hatch [R-UT]
#26 39.0% Sen. Mike Johanns [R-NE, 2009-2014]
#27 38.7% Sen. John Boozman [R-AR]
#28 38.7% Sen. Saxby Chambliss [R-GA, 2003-2014]
#29 38.6% Sen. Heidi Heitkamp [D-ND]
#3 61.6% Sen. Mark Kirk [R-IL, 2010-2016]
#30 37.7% Sen. John Thune [R-SD]
#31 35.6% Sen. Mark Pryor [D-AR, 2003-2014]
#32 34.8% Sen. John Cornyn [R-TX]
#33 33.5% Sen. Pat Roberts [R-KS]
#34 33.0% Sen. Jefferson “Jeff” Sessions [R-AL, 1997-2017]
#35 32.9% Sen. David Vitter [R-LA, 2005-2016]
#36 32.6% Sen. Michael Enzi [R-WY]
#37 32.0% Sen. Thomas Coburn [R-OK, 2005-2014]
#38 31.0% Sen. Claire McCaskill [D-MO]
#39 30.5% Sen. Joe Donnelly [D-IN]
#4 53.0% Sen. Dean Heller [R-NV]
#40 29.2% Sen. Harry Reid [D-NV, 1987-2016]
#41 28.9% Sen. John Barrasso [R-WY]
#42 28.8% Sen. Ted Cruz [R-TX]
#43 28.8% Sen. James Risch [R-ID]
#44 28.7% Sen. Ron Johnson [R-WI]
#45 27.8% Sen. James “Jim” Inhofe [R-OK]
#46 27.7% Sen. Jeff Flake [R-AZ]
#47 27.6% Sen. Mark Warner [D-VA]
#48 27.4% Sen. Deb Fischer [R-NE]
#49 27.2% Sen. Mark Begich [D-AK, 2009-2014]
#5 51.5% Sen. Charles “Chuck” Grassley [R-IA]
#50 26.0% Sen. Timothy Kaine [D-VA]
#51 25.9% Sen. Kay Hagan [D-NC, 2009-2014]
#52 25.2% Sen. Mary Landrieu [D-LA, 1997-2014]
#53 24.5% Sen. Max Baucus [D-MT, 1978-2014]
#54 24.4% Sen. Daniel Coats [R-IN, 2011-2016]
#55 24.3% Sen. Tim Johnson [D-SD, 1997-2014]
#56 23.6% Sen. Rand Paul [R-KY]
#57 23.5% Sen. Thomas Carper [D-DE]
#58 23.3% Sen. Bill Nelson [D-FL]
#59 22.7% Sen. Robert “Bob” Casey [D-PA]
#6 50.7% Sen. Roy Blunt [R-MO]
#60 21.6% Sen. Mike Lee [R-UT]
#61 21.5% Sen. Jeanne Shaheen [D-NH]
#62 20.8% Sen. Amy Klobuchar [D-MN]
#63 20.8% Sen. Michael Bennet [D-CO]
#64 20.3% Sen. Jon Tester [D-MT]
#65 20.2% Sen. Mark Udall [D-CO, 2009-2014]
#66 19.7% Sen. Tim Scott [R-SC]
#67 19.5% Sen. Sherrod Brown [D-OH]
#68 18.6% Sen. Carl Levin [D-MI, 1979-2014]
#69 18.4% Sen. Edward “Ed” Markey [D-MA]
#7 49.3% Sen. Jerry Moran [R-KS]
#70 18.0% Sen. Ron Wyden [D-OR]
#71 17.4% Sen. Barbara Mikulski [D-MD, 1987-2016]
#72 17.1% Sen. Patrick Leahy [D-VT]
#73 17.0% Sen. Chris Coons [D-DE]
#74 16.8% Sen. Martin Heinrich [D-NM]
#75 16.8% Sen. Richard Durbin [D-IL]
#76 16.7% Sen. Tom Udall [D-NM]
#77 16.0% Sen. Christopher Murphy [D-CT]
#77 16.0% Sen. Dianne Feinstein [D-CA]
#79 15.2% Sen. Maria Cantwell [D-WA]
#8 49.3% Sen. Kelly Ayotte [R-NH, 2011-2016]
#80 15.1% Sen. Tammy Baldwin [D-WI]
#81 14.9% Sen. Mazie Hirono [D-HI]
#82 14.4% Sen. Benjamin Cardin [D-MD]
#83 14.1% Sen. John “Jay” Rockefeller [D-WV, 1985-2014]
#84 13.8% Sen. Barbara Boxer [D-CA, 1993-2016]
#85 13.2% Sen. Debbie Stabenow [D-MI]
#86 12.9% Sen. Richard Blumenthal [D-CT]
#87 12.9% Sen. Robert “Bob” Menéndez [D-NJ]
#88 12.8% Sen. Charles “Chuck” Schumer [D-NY]
#89 12.8% Sen. Patty Murray [D-WA]
#9 48.5% Sen. Robert “Rob” Portman [R-OH]
#90 11.8% Sen. Brian Schatz [D-HI]
#91 11.6% Sen. Thomas “Tom” Harkin [D-IA, 1985-2014]
#92 11.5% Sen. John “Jack” Reed [D-RI]
#93 11.4% Sen. Elizabeth Warren [D-MA]
#94 11.0% Sen. Jeff Merkley [D-OR]
#95 10.7% Sen. Sheldon Whitehouse [D-RI]
#96 9.9% Sen. Kirsten Gillibrand [D-NY]
#97 9.7% Sen. Alan “Al” Franken [D-MN, 2009-2017]
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Only Democratic and Republican Members of Congress who cosponsored more than 10 bills and resolutions are included in this statistic.

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 2013) was the 113th Congress (freshmen) or 112th (sophomores). Members of Congress who took office within the last few months of a Congress are considered freshmen in the next Congress as well.