Technology
Legislative Gridlock in Presidential Systems Under Divided Government
Quick fact
In the United States, the federal government enacted significantly fewer major laws during periods of divided government, and the longest government shutdown in history occurred under divided government, lasting 35 days in 2018–2019.
Why this is interesting
Imagine a country where the president and the Congress are controlled by opposing parties. Why does so little get done, even when the public demands action?
Read the full explanation
Understanding Legislative Gridlock in Presidential Systems Under Divided Government
To understand gridlock, think of the legislative process as a series of gates. A bill must pass through both chambers of the legislature and then get the president's signature. Under divided government, the party that controls the presidency may oppose the legislation passed by the opposing party's majority in Congress. The president can veto the bill, and to override a veto, Congress needs a two-thirds majority in both chambers—a high bar when parties are closely balanced. Thus, even if a majority of legislators support a bill, it can be blocked by a veto threat. This institutional separation of powers—designed to prevent tyranny—can also produce policy paralysis when the branches are controlled by different parties. Gridlock becomes more severe when parties are polarized because compromise is less likely. The result is often a 'do nothing' Congress, with public approval declining.
A deeper explanation
The mechanism of gridlock lies in the interaction of veto points and the preferences of 'veto players'—actors whose agreement is necessary to change policy. In a presidential system, the president is a veto player, and the legislature may be composed of two chambers, each a separate veto player if their agreement is required. When these veto players have different preferences—as when the president is from one party and the majority in Congress from another—the set of policies that all veto players prefer over the status quo (the 'gridlock interval') can be large. Legislation that would change the status quo but lies outside this set will fail. The supermajority requirement to override a veto effectively makes the president's preference decisive unless a very large majority opposes it. Moreover, the threat of a veto can be used strategically: the president may signal a veto early to force Congress to negotiate, or Congress may pass bills it knows will be vetoed to force the president to take a public stance. The consequences of gridlock include delayed responses to crises (e.g., budget deficits, infrastructure decay) and increased reliance on executive orders and judicial rulings, which can further polarize politics. Gridlock is not inevitable; factors such as strong committee systems and informal norms can facilitate compromise, but the institutional structure creates a strong bias toward inaction when preferences diverge.