McConnell’s Senate Republicans rarely side with Obama’s agenda, CQ vote studies reveal. (Bill Clark/CQ Roll Call File Photo)
Given that old adage, “You can’t tell where you’re going unless you know where you’ve been,” casting a close eye over last year’s congressional voting patterns is in order.
Sure, that was an election year for a divided Capitol, while Republicans now run the whole show and their performance isn’t subject to formal assessment by the voters until next year. But still, members behaved in the second half of the 113th Congress in ways distinctive enough to create several storylines to watch throughout the 114th.
Some of the best evidence for that comes from the vote studies conducted annually by CQ Roll Call since the early 1950s. They provide empirical assessments of the previous year’s congressional partisanship and presidential support — both in the House and Senate as institutions and in the ballots cast by each lawmaker. (You can peruse or download all the numbers for the previous year at CQ.com.) Comparing the results year over year and as six-decade trend lines offers proof positive that partisanship and polarization are the drivers of legislative behavior more than in any other period since at least the start of the Eisenhower administration.