Earlier this year, the Cook Political Report released their 2017 Partisan Voting Index (PVI) Ratings, measuring the partisan strength of all 435 congressional districts and 50 states in the US. As the first session of the 115th Congress comes to a close, we took a look at what the partisan strength of a district or state can reveal about how often a member of Congress worked across the aisle in 2017. You can check out some of our findings below and download the full report here!
House members who represent districts with PVI ratings of D+5 or greater vote against their party an average of 3.9% of the time. On the opposite end, members who represent districts with a PVI of R+5 or greater vote against their party an average of 4.6% of the time. And members in highly competitive districts, ranging from D+5 to R+5, vote against their party an average of 7.5% of the time.
As the minority party in the chamber, House Democrats cosponsor legislation across the aisle 29% of the time compared to House Republicans 12.3% of the time.
More than 50% of the legislation Rep. Peterson (D-MN-7), Rep. Cuellar (D-TX-28), Rep. Sinema (D-AZ-9), Rep. Kind (D-WI-3), Rep. Gottheimer (D-NJ-5), and Rep. Costa (D-CA-16) have cosponsored this year is led by a Republican. Rep. Peterson leads the entire chamber in rate of cross-party cosponsorships with 72%.
Senator Manchin (D-WV) votes against his own party more than any other member in the Senate. Manchin is joined by fellow Democrats in Republican states, Senator Donnelly (D-IN) and Senator Heitkamp (D-ND), as well as progressive colleagues Senator Sanders (I-VT) and Senator Gillibrand (D-NY).