Constitutional Law

The U.S. Constitution is the supreme law of the United States, ratified in 1788. It establishes the framework of government, defines the separation of powers among three branches, and protects individual rights through amendments. It is the oldest written national constitution still in use.

The Preamble states: "We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution." It declares the purposes and guiding principles of the document.

Article I establishes the Legislative Branch (Congress), consisting of the Senate and House of Representatives. It grants Congress the power to make laws, levy taxes, regulate commerce, declare war, and other enumerated powers. Section 8 lists specific congressional powers; Section 9 lists limitations.

Article II establishes the Executive Branch, headed by the President. It defines the President's powers, including serving as Commander-in-Chief, making treaties (with Senate approval), appointing federal judges and officials, and executing the laws of the nation.

Article III establishes the Judicial Branch, including the Supreme Court and lower federal courts created by Congress. It defines the jurisdiction of federal courts, extends judicial power to cases arising under the Constitution and federal law, and guarantees the right to a jury trial in criminal cases.

Article IV addresses relations between the states. It includes the Full Faith and Credit Clause (states must honor other states' laws and court decisions), the Privileges and Immunities Clause, the process for admitting new states, and the guarantee of a republican form of government to each state.

Article V describes the amendment process. Amendments can be proposed by a two-thirds vote of both houses of Congress or by a national convention called by two-thirds of state legislatures. Ratification requires approval by three-fourths of state legislatures or state conventions.

Article VI contains the Supremacy Clause, which establishes the Constitution, federal laws, and treaties as "the supreme Law of the Land." It also requires all federal and state officials to take an oath to support the Constitution and prohibits religious tests for public office.

Article VII addresses the ratification of the Constitution, requiring approval by conventions in nine of the thirteen original states. The Constitution was ratified on June 21, 1788, when New Hampshire became the ninth state to approve it.

The Bill of Rights consists of the first ten amendments to the Constitution, ratified in 1791. Authored primarily by James Madison, they were added to protect individual liberties and limit government power. They guarantee freedoms such as speech, religion, and due process.

The 1st Amendment protects five fundamental freedoms: religion (Establishment and Free Exercise Clauses), speech, press, peaceable assembly, and the right to petition the government for redress of grievances. It is the cornerstone of American civil liberties.

The 2nd Amendment protects the right to keep and bear arms. It states: "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." In District of Columbia v. Heller (2008), the Supreme Court held it protects an individual's right to possess firearms.