Fifty Shades of Republic | Part 2: presidential (gubernatorial) veto powers

This post is part of Fifty Shades of Republic, a series reviewing US political institutions at the state level

One of the most significant aspects of any presidential system is the extent of a president’s legislative power. Despite being known as the main example of a “separation of powers system”, few presidential systems really separate the classic “powers” (judicial, executive, and legislative) – instead, as Neustadt (1960) puts it in Presidential Power and the Modern Presidents, presidentialism typically creates a separation of offices which share powers.

The US constitution features a package veto subject to a two-thirds override. ‘Package’ means that when presented with a bill or resolution passed by Congress, the President can only agree to the proposal in full or veto it in full; by contrast, many presidents around the world, and governors of many US states, possess some version of an ‘amendatory’, ‘partial’, or ‘final offer’ veto. These give presidents more active power to intervene directly in the lawmaking process. In the case of a partial veto where the president can enact parts of an assembly bill directly into law (cutting through compromises agreed to in the legislature) are even arguably akin to decree powers in their scope for active lawmaking by the executive. By comparison, package vetoes are often described as a ‘reactive’ power.

In practice, however, the difference is not necessarily so clear-cut. As Moe & Howell (1999) argue, American presidents are able to engage in a great deal of unilateral policymaking (de facto lawmaking), and their ability to do so stems in large part from their supposedly ‘reactive’ veto power. Any actions (or rule-making) a president undertakes may be opposed by Congress, but any bill or resolution Congress passes to oppose presidential actions can be vetoed by the president. Given the two-thirds threshold, overrides are unlikely to be successful absent broad bipartisan support; the only remaining recourse is the courts[1]. Executive orders are often portrayed as much more constrained than the decree powers available to other presidents (which are sometimes also formally limited to what existing legislation allows, e.g. Russia), but we should always keep in mind that such a distinction is only as good as its enforcement.

Presidential veto powers in the states

All US governors (who, as directly-elected chief executives which a fixed term, are presidents) currently possess a legislative veto. North Carolina used to be an exception, as its governor had no formal say over legislation until its constitution was amended to provide for one in 1996. All states have a package veto, which is subject to a varying override threshold[2]:

  • 37 states require a two-thirds vote to override (in 27 it’s 2/3 of the total membership, in 10 2/3 of those voting);
  • 7 states require three-fifths (of the total membership in 6, of those voting in the remaining state);
  • 6 states require an absolute majority vote (always a majority of the total membership).

Where the state legislature is bicameral, override votes require the threshold to be reached in each house separately, with the exception of Alaska, where override votes are held in a joint sitting of both houses.

Many state constitutions offer the legislature some possibility of referring bills to a referendum. In at least one state (Oregon) it is fairly clear this means the legislature can bypass a governor’s veto by submitting a proposal to referendum (the standard override procedure in Iceland and de facto in Weimar Germany). However, most constitutions I have looked through are not clear on this point, as their language on ‘referendum and initiative’, present in about half the states’ constitutions, is usually ambiguous and contradictory (often in the same ways, as many states copied each other’s provisions in the early 20th century). If anyone knows more, please let me know in the comments!

Map of gubernatorial veto powers (click for full-size image)

Partial and ‘final offer’ veto power

The vast majority of states (44) grant their governors a ‘line-item veto’ – the power to enact some appropriations proposed in a bill while disallowing others (indicated on a map with a dollar sign). In 12 of those the governor can also reduce appropriations without deleting them entirely (indicated with a minus before the dollar sign). In all states, the override threshold is the same for line-item vetoes as for regular package vetoes – with the exception of Illinois, where an absolute majority is sufficient compared with the usual three-fifths.

As far as I am able to tell, no governor has the power to partially enact any other type of bill. Some states’ constitutions also clearly limit the power of deletion to items which appropriate money. In some states where the provisions are more ambiguous they have sometimes been interpreted more broadly. Infamously (and apparently uniquely), Wisconsin governors for many years successfully exploited the ambiguities in their state’s constitution to stretch their veto authority. Governors would edit bills by deleting sentences, words, digits and even letters to enact completely new legislation, with sometimes very different effects from those intended by legislature. This was mainly done to appropriations, but often also in other policy areas, since any bill with at least one appropriation item counted as an “appropriation bill”. Successive Wisconsin Supreme Courts affirmed governors’ interpretations of the rules, and the state’s partial veto was trimmed only gradually through two constitutional amendments in 1990 and 2008, and last year by a Supreme Court ruling seeming to reverse course on its previous judgements on the topic[3].

6 states add another feature to their gubernatorial veto, commonly called an “amendatory veto” in US sources (hence it is indicated on the map with an A), although it is best understood as the ability for a president to present the legislature with ‘final offer’. It means that the president can return to the bill to the assembly with some proposed amendments – the assembly can then choose to accept the bill as amended (by regular majority/majorities), in which case the amended bill becomes law, or insist on its original version of the bill, which requires whatever the usual majority or supermajority for (package) veto override is. This ‘final offer’ feature is very common across Latin America (e.g. Colombia, Mexico, Peru).

Effectively, any assembly can accept a president’s conditions for approval, even when only the package veto is allowed. The amendatory or ‘final offer’ feature formalises this possibility, but effectively also simplifies the procedure to do so, which might otherwise require restarting consideration of the bill and having to pass all three readings again before being presented to the governor. Besides anything else, therefore, this feature makes the veto procedure more forgiving of any errors in communication between president and assembly.

Veto power regarding resolutions and ‘legislative vetoes’

As I suggested above, a president’s power relative to the assembly depends in large part on the ability to veto not just bills, but also resolutions (which may not count as a “bill” or proposed legislation), specifically ones meant to counter executive action. It may also mean that whenever the legislature delegates authority to the executive branch or the bureaucracy by statute, the majority party’s ability to review executive or administrative decisions will be be limited by the president’s ability to veto such review[4].

As with the referendum, this was difficult to figure out precisely from constitutional texts. However, this much is clear: many (perhaps most) state constitutions, like the federal constitution, explicitly state that resolutions can be vetoed. Some states (e.g. Louisiana, North Carolina, Montana), on the other hand, clearly place legislative resolutions outside the reach of a gubernatorial veto. Idaho was one state constitution where I was able to find more detail about legislative delegation: the legislature can reject administrative rules, an action not subject to the governor’s veto.

Now, I almost certainly missed more examples and relevant provisions, and moreover I suspect the reality on the ground may be at least as affected by statutes and judicial interpretation as by constitutional provisions. Again, if anyone knows more I would love to hear about it in the comments!

The ‘weak governor belt’

This post is already fairly long, so I will conclude with just one observation: there is a sizable share of the states where the governor is comparatively weak, since they cannot join with a minority in the legislature to block a bill. In most of these states (indicated on the map in yellow), the governor may use the line item veto to undo a compromise she disagrees with on appropriations, but in other areas, the governor’s veto will mostly serve as a test of the legislative coalition which passed the bill. If the coalition was fragile, or if its initial success owed too much to abstentions, the override may fail, but there is no need to appease a minority for an override to succeed. In principle, legislative deadlock cannot result from divided government between president and assembly, only from things internal to the assembly or its parties.

Interestingly, these ‘weak governor states’ happen to all border each other; moreover, most of the states with a 3/5-override veto border these states as well. I haven’t really looked into the history of this geographic pattern, so I don’t know if it was the result of some manner of institutional diffusion – maybe some of our readers know more.

At any rate, what is clear is that there is meaningful variation on this point within the United States (variation which often seems to go unnoticed – multiple articles I’ve seen about a veto override in Kentucky or Arkansas failed to mention that the override takes just a majority in these states). Looking to these states’ experience with executive overreach and other consequences of the usual veto power should provide fruitful for research, and would be easier for reformers to emulate than any foreign example.


[1] Courts which are appointed by the president. Democratic and Republican presidents may disagree on many things, but they all favour increasing presidential power, which influences their choice of judges.

[2] At least two states have an override threshold of three-quarters in a few selected areas: in Alaska this applies to money bills; in Arizona this applies to some specific cases (e.g. amendments to enacted popular initiatives, emergency bills, raising taxes) where the minimum requirement is already a two-thirds majority.

[3] Although the ruling’s ambiguity (caused by the multiple separate opinions offered) and its potentially partisan motivation (it has been a fairly conservative court, and the incumbent governor is a Democrat) suggest it may not be the last word on the matter.

[4] Though this ultimately depends on what kind of review the constitution allows the legislature to write into statute (or the judiciary’s interpretation of the constitution on this point – which in the case of the US federal government has certainly been very narrow).