Many believe that weaker legal constraints make unilateral action easier to reverse than legislation. Yet in some cases, unilateralism survives a successor's determined opposition. I argue that legislative persistence and unilateral transience may arise not only from differences in legal status but also from a selection effect: unilateralism and subsequent rescission can both stem from weak underlying policy-demanding groups. But if unilateralism itself alters the landscape of group power through policy feedback effects, it can survive a purportedly opposed new president. An example is the Trump Administration's failure to depart from the Obama Justice Department's lax stance on cannabis. Weak constituents’ policy demands may thus need to rely on a sympathetic president's unilateral action to begin a feedback loop, subsequently softening opposition. This paper therefore identifies unilateral action as a key tool for shifting policy in an enduring way, explaining its success or failure in terms of interest group power.

With the increasing nationalization of politics, federal politicians have interacted more and more with subnational actors. In particular, the president and governing party have provided selective policy and spending benefits to same-party jurisdictions in order to increase their influence in subnational politics. As a significant amount of federal grants is allocated directly to city governments, we analyze the effects of the federal-city relationship in the federal grant process. Specifically, we examine the effects of the president–mayor party alignment on the allocation of federal block and project grants to 568 medium and large cities from 2005 to 2020 using a two-way (city and year) fixed-effects model. We find that the president favors co-partisan mayors in the distribution of federal grants, specifically co-partisan mayors from (a) secure party cities, (b) cities in states where the governor is also a co-partisan, and (c) secure party cities in states where the governor is also a co-partisan. Digging deeper, we find this form of presidential particularism is almost exclusively a Democratic pursuit.

Moving past the conventional focus on ministerial portfolios, this paper investigates how coalition governments allocate and share ministerial responsibility for individual policy issues. Sharing responsibility induces coalescing parties to collaborate on policy issues, which addresses the problem of ministerial autonomy. Consequently, I argue that incumbent parties in coalition governments share ministerial responsibility for contentious and salient policy issues. This claim is corroborated based on a newly elicited dataset of over 30,000 ministerial policy responsibilities from Denmark, Germany, and the Netherlands. The findings have important implications for scholarship on coalition governments, as they demonstrate that incumbent parties can use the design of ministerial portfolios itself to insulate a coalition compromise from partisan deviations.

Recent studies provide evidence that the absence of a no-confidence procedure in presidential systems is crucial for understanding why the allocation of portfolios does not follow the same pattern in both parliamentary and presidential democracies. In this study, I argue that distinctions within presidential systems must be used to explain the substantial variation in the allocation of portfolios to presidential parties. I theorize that when the president is more dependent upon the legislature to make and enact policies, the balance of power in presidential cabinets is more likely to reflect the balance of power in the legislature. In this case, the presidential cabinet can resemble the proportional cabinets usually formed in parliamentary systems. With new data from 20 presidential democracies worldwide spanning more than 70 years, the results support the expectation of a greater formateur's advantage when presidents have greater institutionally-granted powers to influence the policy agenda in the legislature.

Does increasing executive power necessarily decrease accountability? To answer this question, I develop a two-period signaling model comparing voter welfare in two separation-of-powers settings. In one, the executive works with a median legislator to change policy; in the other, the executive chooses between legislation or unilateral action. Both politicians may have preferences that diverge from the voter's, yet I find that increasing executive power may increase accountability and welfare, even in some cases when the legislator is more likely to share the voter's preferences than the executive. Unilateral power allows a congruent executive to overcome gridlock, implement the voter's preferred policy, and reveal information about the politicians’ types—which can outweigh the risks of a divergent executive wielding power for partisan ends.

Delegation is a well-known feature of policymaking in separation of powers systems. Yet despite the importance of this activity, there is little systematic evidence about how many major laws in the United States actually delegate policymaking authority to administrators in federal agencies. Using a database of agency regulatory activity along with text searches, we examine significant US federal enactments from 1947 to 2016 to see which of these laws delegate to agencies. We find that nearly all major laws—more than 99 percent—contain delegation. We also find that the number of agencies receiving delegation in each law has increased over time.

Do agencies implement the president's particularistic goals uniformly? This paper clarifies the presidential particularism literature by explicitly considering the mechanism through which the president pursues their policy goals: executive agencies. The constellation of bureaucratic agencies responsible for allocating grants plays a key role in facilitating or frustrating presidential policy priorities. Using a dataset of 21 agencies over 14 years, I find that only agencies ideologically proximate to the president engage in particularism benefiting the president. I find no evidence that politicization influences agency implementation of particularism. Critically, the moderating effect of the bureaucracy on particularism only occurs for distributive programs over which agencies have discretion. When disbursing formula grants written by Congress but administered by the bureaucracy with little or no discretion, ideological distance between agencies and presidents has no effect on particularism.

Research on presidential power delineates between a modern era of relative autonomy and an earlier period of congressional dominance. What drove this change? Unlike prior arguments about presidential entrepreneurship and the rise of the United States as a global power, we attribute the emergence of the modern presidency partially to an institutional change—the adoption of direct election of senators that culminated in the 17th Amendment. With direct election, senators were selected by individual voters rather than state legislators. These senators answered to a new principal—the general public—that was (in the aggregate) less informed and less interested in foreign policy. As a result, senators had less incentive to constrain presidential foreign policy preferences. We find evidence for this shift in the relationship between the piecemeal adoption of direct election and senate votes to delegate foreign policy authority to the executive. The implication is that the direct election of senators played an underappreciated role in the emergence of the modern presidency.