
Article I of the US Constitution outlines the design of the legislative branch of the US government, which is the Congress. It establishes the separation of powers between the branches of government, the election of Senators and Representatives, the lawmaking process, and the powers of Congress. This article also includes the three-fifths compromise, which was a compromise between Southern and Northern states regarding the population of slaves counted for enumeration purposes and the apportionment of seats in the House of Representatives. It empowers Congress to meet annually, regardless of whether the president called the session, and grants Congress exclusive powers, such as the right to legislate for the nation's capital, the District of Columbia.
| Characteristics | Values |
|---|---|
| Legislative Powers | Vested in a Congress of the United States, which consists of a Senate and House of Representatives |
| Meeting Frequency | At least once a year, on the first Monday in December unless a different day is appointed by law |
| House Autonomy | Each House is the judge of the elections, returns, and qualifications of its members, and a majority constitutes a quorum to do business |
| House Rules | Each House determines the rules of its proceedings, may punish members for disorderly behavior, and may expel a member with two-thirds concurrence |
| Journal Keeping | Each House keeps a journal of its proceedings, publishing except for parts deemed secret, and records the yeas and nays of members on any question when desired by one-fifth of those present |
| House Adjournment | Neither House shall, without the other's consent, adjourn for more than three days or to a place other than where the two Houses sit |
| Lawmaking | Congress makes laws necessary and proper for executing the powers vested by the Constitution in the US government or any department or officer thereof |
| Migration and Importation | A tax or duty may be imposed on the migration or importation of persons not exceeding $10 per person until 1808, after which Congress may prohibit such importation |
| Writ of Habeas Corpus | The privilege of the writ of habeas corpus shall not be suspended unless in cases of rebellion or invasion where public safety is at risk |
| Taxation | No capitation or direct tax shall be laid unless in proportion to the census or enumeration |
| State Imposts and Duties | No State shall lay imposts or duties on imports or exports without Congress's consent, and all such laws are subject to Congress's revision and control |
| Military Justice | Congress enacted the Uniform Code of Military Justice to improve the fairness and quality of courts-martial and military justice |
| Federal Tort Claims | Congress enacted the Federal Tort Claims Act, allowing military servicepersons to sue for damages until repealed by the Supreme Court |
| District of Columbia | Congress has the exclusive right to legislate "in all cases whatsoever" for the nation's capital, the District of Columbia |
| Powers | To declare war, grant letters of marque and reprisal, make rules concerning captures, raise and support armies (with funding limits), provide for the militia, and define and punish piracies and felonies |
| Science and Arts | To promote the progress of science and arts by securing limited times for authors and inventors to hold exclusive rights to their writings and discoveries |
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What You'll Learn

Article I, Section 1 grants Congress all federal legislative powers
Article I, Section 1 of the US Constitution grants Congress all federal legislative powers. This article outlines the design of the legislative branch of the US government and includes important ideas such as the separation of powers between different branches of government, the election of senators and representatives, the law-making process, and the powers that Congress holds.
Article I, Section 1 establishes that all legislative powers granted by the Constitution are vested in the US Congress, which consists of the Senate and the House of Representatives. The House of Representatives is composed of members chosen every second year by the people of the various states, with each state's electors meeting the qualifications required for electors of the largest branch of their state legislature. To be a Representative, one must be at least 25 years old, have been a US citizen for at least seven years, and be an inhabitant of the state they represent.
Article I also outlines the rules and procedures of Congress, including the quorum requirement for conducting business, the authority to judge the elections and qualifications of its members, the power to determine the rules of its proceedings, and the ability to expel members with a two-thirds concurrence. Additionally, it mandates the keeping of a journal of proceedings, with the option to withhold certain parts deemed confidential.
Furthermore, Article I grants Congress the exclusive right to legislate for the nation's capital, Washington, DC, and outlines the powers that Congress has. These powers include the ability to declare war, raise and support armies, define and punish piracies and felonies on the high seas, regulate commerce with other nations and Native American tribes, establish uniform rules for naturalization and bankruptcy laws, and lay and collect taxes for the common defence and general welfare of the nation.
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Congress can declare war
The US Constitution's Article I, Section 8, Clause 11, also known as the War Powers Clause, explicitly grants Congress the authority to declare war. This clause states that "The Congress shall have Power [...] To declare War, grant Letters of Marque and Reprisal, and make Rules concerning Captures on Land and Water". The Constitution's framers intended to enhance the country's ability to guarantee peace and security through military might.
The Declare War Clause gives Congress exclusive authority over both formal and informal declarations of war. Formal declarations of war are explicit proclamations, while informal declarations involve authorising hostile attacks. The power to declare war is a central element of Congress's war powers, and it unquestionably allows the legislature to initiate hostilities.
The Declare War Clause limits the President's ability to use military force without Congress's approval. While the President can defend the country and respond to attacks, they generally cannot initiate hostilities or use offensive force without Congressional authorisation. However, the exact boundaries of the Declare War Clause remain unresolved, and the interpretation of the President's war powers is a subject of debate.
Congress has formally declared war five times: the War of 1812, the Mexican-American War, the Spanish-American War, World War I, and World War II. However, Presidents have engaged in military operations without express Congressional consent, including the Korean War, the Vietnam War, Operation Desert Storm, the Afghanistan War of 2001, and the Iraq War of 2002. These conflicts are not considered official wars by the United States due to the lack of a formal declaration of war.
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Congress can raise and support armies
Article I of the US Constitution outlines the design of the legislative branch of the US government, which is the Congress. Article I, Section 8, Clause 12 of the US Constitution grants Congress the power to "raise and support Armies". This clause is a result of the English king's historical power to raise and maintain armies and navies, which was often detrimental to the liberties and well-being of Englishmen. The Framers of the US Constitution, aware of this history, vested the power to raise and support armies in Congress, with the understanding that it would be used for the benefit of the people.
The power to raise and support armies is not without limitations. One significant limitation is the restriction on the appropriation of money for that purpose to a term of two years. This limitation, included by the Framers, was prompted by the fear of standing armies and the potential abuse of power. In 1904, a question arose regarding whether this provision would be violated if the government entered into long-term contracts for the use of patents in constructing military equipment. Solicitor-General Hoyt ruled that such contracts would be lawful, interpreting the appropriation limitation to apply specifically to the raising and supporting of armies, and not to other related expenses.
The Supreme Court has affirmed Congress's broad constitutional power to raise and regulate armies and navies. In United States v. O'Brien, the Court upheld the constitutional validity of conscription acts, stating that the "power of Congress to classify and conscript manpower for military service is 'beyond question.'" This power has been further supported by the Court's opinions in cases such as Lichter v. United States and Schlesinger v. Reservists Committee to Stop the War.
Additionally, the Supreme Court has ruled on the relationship between the powers of Congress and the states' rights to maintain a well-regulated militia. In Selective Draft Law Cases, the Court held that the powers of the states concerning the militia are subordinate to the paramount power of the National Government to raise and support armies. The Court also clarified that Congress's power to mobilize an army is distinct from its authority to call upon the militia and is not limited by it.
In conclusion, the US Constitution grants Congress the power to "raise and support Armies" under Article I, Section 8, Clause 12. This power comes with certain limitations, such as the two-year restriction on appropriations, and has been affirmed and clarified through various Supreme Court rulings. The purpose of this clause is to ensure that the power to raise and support armies is used for the benefit and protection of the people, while also maintaining a balance of power between the federal government and the states.
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Congress can make laws
Article I of the US Constitution outlines the design of the legislative branch of the US government, which is Congress. It describes the separation of powers between the branches of government, the election of Senators and Representatives, the lawmaking process, and the powers that Congress holds.
Article I, Section 8, Clause 18 of the US Constitution, also known as the Necessary and Proper Clause, grants Congress the power to "make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers, and all other Powers vested by this Constitution in the Government of the United States, or in any Department or Officer thereof." This clause ensures that Congress has the authority to create laws necessary to execute the powers outlined in the Constitution and govern effectively.
Congress's lawmaking powers include the ability to lay and collect taxes, duties, imposts, and excises to fund the government and provide for the common defence and general welfare of the nation. They can also regulate commerce with foreign nations, among the states, and with Indian tribes. Additionally, Congress has the power to establish uniform rules for naturalization and bankruptcy laws across the country.
In terms of national security, Congress can declare war, grant letters of marque and reprisal, and make rules concerning captures on land and water. They can also raise and support armies, with the stipulation that appropriations of money for this purpose cannot exceed a term of two years. Congress is responsible for calling forth the militia to execute laws, suppress insurrections, and repel invasions. They also have the power to organise, arm, and discipline the militia employed in the service of the United States, while reserving the appointment of officers and training authority to the states.
Congress holds the exclusive right to legislate for the nation's capital, the District of Columbia, although they may choose to devolve some of this authority to the elected officials of the district. This power is separate from the executive branch and the Pentagon, as reaffirmed by the US Supreme Court in cases such as Burns v. Wilson (1953).
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Congress can judge elections, returns and qualifications of members
Article I of the US Constitution outlines the design of the legislative branch of the US government, or Congress. This article also describes the election of Senators and Representatives, the process by which laws are made, and the powers that Congress holds.
Congressional authority over elections, returns, and qualifications is outlined in Article I, Section 5, Clause 1 of the US Constitution. This clause states that each House of Congress (the Senate and the House of Representatives) shall be the judge of the elections, returns, and qualifications of its own members.
This means that each House has the authority to determine the legitimacy of its members' elections, including the power to investigate expenditures made to influence nominations at a primary election. They can also judge the returns or results of an election, including the ability to conduct or request recounts of ballots.
Additionally, each House can determine the qualifications of its members, including age, citizenship, and residency requirements. They can also expel members with the concurrence of two-thirds, as outlined in Article I.
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Frequently asked questions
Article I of the US Constitution establishes the legislative branch of the US government, also known as Congress.
Article I outlines several key functions of Congress, including the power to make laws, declare war, raise and support armies, and provide for the organisation and discipline of the militia.
Article I states that Congress has the power to constitute tribunals below the Supreme Court and to define and punish felonies and piracies. It also grants Congress the exclusive right to legislate for the nation's capital, the District of Columbia.
Article I, Section 2 states that Representatives shall be chosen every second year by the people of the states and that no person shall be a Representative unless they are at least 25 years old, have been a citizen of the US for at least seven years, and inhabit the state they represent.

























