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Popular Sovereignty in AP US Government

Popular sovereignty is the democratic ideal that the consent of the people is the source of all government power. A government is legitimate only because citizens authorize it. You can see it in the Declaration's "consent of the governed," the Constitution's "We the People," and Lincoln's "government of the people, by the people, for the people."

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

How the Declaration, Constitution, and Gettysburg Address each claim it

All three texts express popular sovereignty, but each one uses it differently. Questions that compare two of them are testing whether you can spell out that difference.

The Declaration of Independence (1776), drafted by Thomas Jefferson with help from Adams and Franklin, states the principle as philosophy. Governments derive "their just powers from the consent of the governed," and when a government becomes destructive of people's rights, "it is the Right of the People to alter or to abolish it." The Declaration lays groundwork for popular sovereignty. It uses the idea to justify withdrawing consent from British rule, echoing John Locke's Second Treatise of Civil Government (1690).

The Constitution puts the principle into operation. The Preamble says "We the People" ordain and establish it, so its authority flows up from citizens. Article I has the House chosen "by the People of the several States," the Constitution took effect through ratification by state conventions, and Article V lets it be amended. The Seventeenth Amendment (1913) later extended direct election to senators.

The Gettysburg Address (1863) came from Abraham Lincoln during the Civil War. It reaffirmed equality and popular sovereignty as the defining foundations of democracy, resolving that "government of the people, by the people, for the people, shall not perish from the earth." Lincoln tied the Union's survival to the survival of self-government.

Telling it apart from similar ideas

The usual wrong answer swaps in another Unit 1 idea. Limited government is about how much power government can hold (never absolute). Republicanism is a principle that helps secure limited government. The people elect representatives who make decisions for them, so it describes how consent gets exercised. If the stem asks where government gets its authority, the answer is popular sovereignty.

If you took APUSH, watch the meaning shift. In the 1850s, popular sovereignty meant letting settlers in a territory vote on slavery, the approach Stephen Douglas pushed in the Kansas-Nebraska Act (1854). AP Gov uses the broader founding meaning of the people as the source of all government power.

Where this sits in AP® Gov

Keep studying AP® Gov Unit 1