⚠️ This post was written in March 2014. Some embedded images and linked resources from the original Typepad blog may no longer display correctly.
Editor’s note: A version of this piece is cross-posted at the LSE USAPP blog, and can be found here. This post is based on my recent article, The International and Domestic Sources of Bipartisanship in U.S. Foreign Policy, in Political Research Quarterly. — The idea that foreign policy and national security issues are somehow exempt from the partisan rancor that often characterizes domestic politics is perhaps best encapsulated by the old adage, “politics stops at the water’s edge.” In American foreign policy, nowhere is this spirit better exemplified than by President Franklin Roosevelt’s appointment of Henry L. Stimson as Secretary of War. Since World War II, Stimson and other prominent bureaucratic appointees—such as Robert Lovett and John McCloy—have come to represent this ideal. This phenomenon of bipartisan cooperation that is held to have characterized the early Cold War period has been popularly referred to as the “Cold War Consensus”, or as “Establishment” bipartisanship. However, following the Vietnam War pronouncements of the collapse of this bipartisan consensus became commonplace. Similar claims followed the end of the Cold War, and more recently, the terrorist attacks of September 11, 2001. Indeed, such assertions have become common in discussions of American foreign policy, with the broader substantive implication being that the conduct of American foreign policy has become increasingly erratic and subject to the kind of partisan political battles that have long afflicted domestic politics. Some of my recent work evaluates just how closely these stylized truths match up with reality. Earlier accounts of the breakdown of bipartisanship in foreign policymaking relied largely on anecdotal accounts or individual’s assertions with little in the way of systematic evidence (see here, here, and here). Some work by political scientists has done better in approaching the concepts of bipartisanship and consensus in a more systematic way (see here, here, here, and here). Still, there are some gaps that my work tries to address. First, earlier qualitative works often focused on elite bureaucratic policymakers (like Stimson), while quantitative studies have tended to focus on congressional voting patterns or public opinion. Second, foreign policy scholars often view bipartisan cooperation through the lens of foreign threats and crises, ignoring or downplaying more basic domestic political pressures that may drive bipartisanship. My work aims to apply a more systematic form of analysis to the subject of bipartisanship in presidential appointments, while also assessing the relative importance of domestic and international factors in affecting bipartisan cooperation. Using data on over 1,000 individual appointees to the foreign policy bureaucracy—agencies like the State Department and the Department of Defense—I identified those individual appointees who were members of the opposition party (e.g., Republican serving in a Democratic administration). Figure 1 shows the number of bipartisan appointees in a given year between 1948 and 2011. While this is only a starting point, it does not lend much support to the conventional narrative regarding the apparent collapse of bipartisanship following either Vietnam or the end of the Cold War. In fact, the early Cold War period sees some of the lowest counts observed in the data.Figure 1 — Annual count of bipartisan appointees, 1948–2011.
Figure 2 — Predicted probability of a bipartisan appointment by party and time period
Similarly, I find no evidence that US conflict involvement promotes bipartisanship. On the contrary, my findings indicate conflict involvement actually has a negative effect on bipartisanship. As Figure 3 shows, the predicted probability of observing a bipartisan appointment decreases as the duration of US war involvement increases. Furthermore, these results actually match the findings of previous studies. Using different metrics, an earlier study by Peter Trubowitz and Nicole Mellow also finds a negative correlation between international crises and bipartisanship in Congressional voting. This negative relationships is likely due to the increasingly contentious and politicized nature of particularly long military engagements.Figure 3 — Predicted probability of a bipartisan appointment as a function of war duration.
Figure 4 — Marginal effect of a decrease in presidential support in Congress on the probability of a bipartisan appointment

Michael Flynn is a professor in the Department of Political Science at Kansas State University. He received his Ph.D. in Political Science from Binghamton University in 2013. His research focuses on the political economy of foreign policy with a specific focus on security cooperation and military deployments.