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Signing Statements in AP US Government

A signing statement is a written comment a president issues when signing a bill into law, explaining how the executive branch reads the law and sometimes which parts it considers unconstitutional or will enforce narrowly. It's an informal power. Nothing in the Constitution creates it, but it lets the president influence how a law is carried out after Congress has passed it.

This definition is part of Fiveable's AP US Government review, which also has guided practice questions.

Verified for the 2027 AP US Government exam•Last updated November 2026•Fiveable Content Team

The claim: a signature that comes with instructions

When a bill reaches the president, the main options are to sign it or veto it. In some circumstances the president can also let it become law without signing it, or use a pocket veto. A signing statement isn't another option on that list. It goes along with the decision to sign.

The president signs the bill, gets credit for the new law, and attaches a note saying something like "my administration will read Section 5 consistent with my authority as commander in chief."

This sits in Unit 2 (Interactions Among Branches of Government), at Topic 2.4 (Roles and Powers of the President) and Topic 2.6 (Expansion of Presidential Power). At 2.4, it's one of the tools a president uses to put a policy agenda into effect, alongside executive orders and bargaining with Congress. At 2.6, it's evidence in the bigger argument over whether the presidency has grown beyond what the Framers designed.

The label to keep straight is informal power. The veto is written into the Constitution. Signing statements grew out of practice, the same way executive agreements did.

The evidence: how presidents used them to stretch executive authority

Presidents have issued signing statements since the 1800s, but their use grew sharply starting with the Reagan administration. Instead of just praising a new law, presidents increasingly used them to flag provisions they thought intruded on executive power.

The best-known example came under George W. Bush. In 2005, Congress passed the Detainee Treatment Act, which banned cruel, inhuman, or degrading treatment of detainees. Bush signed it, then issued a statement saying he'd interpret it consistent with his constitutional authority over the executive branch and as commander in chief. Critics read that as reserving the right to set the law aside.

That ties straight to the Topic 2.6 debate. Supporters point to Hamilton's argument in Federalist No. 70 that "energy in the executive" is needed for steady administration of the laws and for national security. Critics see signing statements as a way for presidents to expand their power by going around Congress. The Twenty-Second Amendment, which limits how long a president can serve, reflects a separate concern about presidential power, focused on how long one person holds the office. Presidents of both parties, including Obama, have issued signing statements, which shows the practice belongs to the office more than to one party.

The limits: what a signing statement can't actually do

A signing statement doesn't change the text of the law. Whatever Congress passed and the president signed is still the law, and courts generally interpret the statute itself, not the president's commentary on it.

It also isn't a line-item veto. Congress tried to give the president that power with the Line Item Veto Act, and the Supreme Court struck it down in Clinton v. City of New York (1998) because canceling parts of a signed law skips the process in Article I. A signing statement can signal how the executive will enforce a provision, but it can't delete one.

Congress still has checks. It can hold oversight hearings, use the power of the purse to fund or defund enforcement, or pass a clearer law. The weak spot is that none of these work as directly as overriding a veto, which is why critics call signing statements a back door around the 2/3 override.

Signing statement, veto, or executive order

Suppose a stem says the president signed a bill but announced that one section would be read "consistent with my authority as commander in chief." Calling that a veto or an executive order is the wrong answer, so the three tools need to stay separate.

  • Veto: a formal power. The president rejects the whole bill, and Congress can override with a 2/3 vote in each chamber (a pocket veto can't be overridden).
  • Signing statement: an informal power. The bill becomes law, and the president announces an interpretation of it.
  • Executive order: a directive to the executive branch that runs the government, based on executive power or authority Congress delegated. It doesn't need a bill at all.

A common mix-up treats a signing statement as a type of veto or as a formal constitutional power. If a stem says the president signed the bill, it's law. Any objection the president attaches is an informal move.

Using signing statements in Concept Application and the Argument Essay

Take a president whose party is in the minority in Congress, relying on executive orders, signing statements on the bills that do pass, and speeches to the public. A multiple-choice stem might describe that setup, and the answer is about presidents turning to informal powers and unilateral action when bargaining with Congress breaks down.

On Question 1 (Concept Application), a scenario might describe a president signing a defense bill while declaring certain reporting requirements "advisory." A strong answer names the signing statement as an informal power, explains how it shapes enforcement, and identifies a congressional response like oversight hearings or funding limits.

On Question 4 (Argument Essay), signing statements work as specific evidence on a prompt about whether presidential power has grown too far. If you're defending signing statements, use Federalist No. 70 to support an energetic executive, then answer critics by explaining that a signing statement can't change the law and is still subject to checks like oversight, the power of the purse, and the courts. If you're arguing presidential power has grown too far, use the lack of an override vote as part of that argument, since a president can shape how a law is enforced without Congress getting the vote it would have on a veto. Either way, treating the example correctly as informal and showing what checks still apply makes the reasoning hold up.

Where this sits in AP® Gov

Keep studying AP® Gov Unit 2