Title: Separation of powers under the United States Constitution
Content:  not lined out in the Constitution that are given to the federal government. These powers are then given to the states in a system called federalism. Congress is one of the branches of government so it has a lot of powers of its own that it uses to pass laws and establish regulations. These include express, implied, and concurrent powers. It uses its express powers to regulate bankruptcies, business between states and other nations, the armed forces, and the National Guard or militia. They also establish all laws necessary and proper for carrying out other powers. In addition to this Congress makes 
Title: Exclusive federal powers
Content:  Exclusive federal powers are powers within a federal system of government that each constituent political unit (such as a state or province) is absolutely or conditionally prohibited from exercising. That is, either a constituent political unit may never exercise these powers, or may only do so with the consent of the federal government. These powers are contrasted with concurrent powers, which are shared by both the federal government and each constituent political unit.
Title: Reserved powers
Content:  In the United States, the Tenth Amendment of the Constitution states that any power not explicitly granted to the federal government lies solely in the states. However, since World War II, the Supreme Court has consistently ruled against cases challenging the powers of Congress, with exceptions during the Rehnquist Court. In effect, the Supreme Court has decided that Congress has the power to determine the scope of its own authority.
Title: Martin v. Hunter's Lessee
Content:  their respective constitutions, remained unaltered and unimpaired, except so far as they were granted to the government of the United States. These deductions do not rest upon general reasoning, plain and obvious as they seem to be. They have been positively recognised by one of the articles in amendment of the constitution, which declares, that 'the powers not delegated to the United States by the constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people.' The government, then, of the United States, can claim no powers which are not granted to 
Title: Exclusive federal powers
Content:  According to U.S. law, reserved powers (i.e. states' rights) belong exclusively to each state. They are distinct from the enumerated powers that are listed in the Constitution of the United States, which include both concurrent powers and exclusive federal powers. In Federalist No. 32, Alexander Hamilton described three distinct types of exclusive federal powers: "This exclusive delegation, or rather this alienation, of State sovereignty, would only exist in three cases: [i] where the Constitution in express terms granted an exclusive authority to the Union; [ii] where it granted in one instance an authority to the Union, and in another prohibited the States from exercising the like authority; and [iii] where it granted an authority to the Union, to which a similar authority in the States would be absolutely and totally contradictory and repugnant."
Title: Preamble to the United States Constitution
Content:  has the power to enforce those powers that are granted to it (e.g., the power to "establish Post Offices and Post Roads" includes the power to punish those who interfere with the postal system so established). The Court has recognized the federal government's supreme power over those limited matters entrusted to it. Thus, no state may interfere with the federal government's operations as though its sovereignty is superior to the federal government's (discussed more below); for example, states may not interfere with the federal government's near absolute discretion to sell its own real property, even when that real property is located in 
Title: Government procurement in the United States
Content:  The authority to purchase is not one of them explicitly enumerated powers given to the Federal Government by Section 8 of Article One of the United States Constitution, but courts found that power implicit in the Constitutional power to make laws that are necessary and proper for executing its specifically granted powers, such as the powers to establish post offices, post roads, banks, an army, a navy, or militias.
Title: Federal government of the United States
Content:  The Constitution grants numerous powers to Congress. Enumerated in Article I, Section 8, these include the powers to levy and collect taxes; to coin money and regulate its value; provide for punishment for counterfeiting; establish post offices and roads, issue patents, create federal courts inferior to the Supreme Court, combat piracies and felonies, declare war, raise and support armies, provide and maintain a navy, make rules for the regulation of land and naval forces, provide for, arm and discipline the militia, exercise exclusive legislation in the District of Columbia, regulate interstate commerce, and to make laws necessary to properly execute powers. Over the two centuries since the United States was formed, many disputes have arisen over the limits on the powers of the federal government. These disputes have often been the subject of lawsuits that have ultimately been decided by the United States Supreme Court.
Title: Enumerated powers (United States)
Content:  The enumerated powers (also called expressed powers, explicit powers or delegated powers) of the United States Congress are the powers granted to the federal government of the United States. Most of these powers are listed in Article I, Section 8 of the United States Constitution. In summary, Congress may exercise the powers that the Constitution grants it, subject to the individual rights listed in the Bill of Rights. Moreover, the Constitution expresses various other limitations on Congress, such as the one expressed by the Tenth Amendment: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people." Historically, Congress and the Supreme Court have broadly interpreted the enumerated powers, especially by deriving many implied powers from them. The enumerated powers listed in Article One include both exclusive federal powers, as well as concurrent powers that are shared with the states, and all of those powers are to be contrasted with reserved powers that only the states possess.
Title: States' rights
Content:  In American political discourse, states' rights are political powers held for the state governments rather than the federal government according to the United States Constitution, reflecting especially the enumerated powers of Congress and the Tenth Amendment. The enumerated powers that are listed in the Constitution include exclusive federal powers, as well as concurrent powers that are shared with the states, and all of those powers are contrasted with the reserved powers—also called states' rights—that only the states possess.

Question: to whom do the powers not given to the federal government by the constitution go?
Answer: the states or the people.