Constitutional Law
Federalism
Supremacy Clause
The Constitution and federal laws are the “supreme Law of the Land” (Art. VI, cl. 2).
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Express preemption
When a federal law expressly states that it is the exclusive regulation in a field, any state attempt to regulate that field is invalid.
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Implied preemption
When the federal law is silent, the state law may nonetheless be preempted:
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Direct conflict: If the federal and state law are in direct conflict, then the state law is invalid.
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State impedes federal objective: If state law impedes the achievement of a stated objective, then the federal law preempts the state law.
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Intergovernmental Immunity
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Federal immunity from state taxation
State taxation of the federal government is prohibited.
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Example: State taxation of a federal bank is prohibited.
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Limited state immunity from federal taxation
The federal government is prohibited from taxing only property used in, or income from, a state’s performance of its basic governmental functions.
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Example: The federal government cannot institute a property tax on state parks.
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Dormant Commerce and Privileges and Immunities Clauses
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Dormant Commerce Clause prohibits undue burdens
The Dormant Commerce Clause prohibits state and local laws that place an undue burden on interstate commerce.
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Determining undue burden: A state regulation which affects interstate commerce is invalid unless the regulation meets the following standards:
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The regulation pursues a legitimate state end;
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The regulation is rationally related to that end; and
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The benefits are greater than the burdens.
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Discrimination against out-of-staters: A state regulation that discriminates against out-of-staters (provides one set of laws for people from out of state and one for in-staters) is only valid if it is necessary to achieve an important government purpose.
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Protecting the in-state economy is never a valid justification for a law that discriminates against out-of-staters.
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Protecting the in-state environment is usually a valid justification.
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Market participant exception: A state or local government may prefer its own citizens in receiving benefits from government programs if it is acting as a business in the market.
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Example: A state college can charge more for out-of-staters then it charges for in-staters.
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Privileges and Immunities Clause of Article IV
A state is prohibited from denying the citizens of another state the fundamental priviliges and immunities it affords its own citizens.
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Fundamental rights defined: The rights that are fundamental are either Constitutional or economic in nature.
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Example: A statute requiring a $2,500 license fee from nonresident commercial fishermen but only $25 for residents is unconstitutional.
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Example: A statute establishing a residency requirement for an abortion is unconstitutional.
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Substantial reason test: A state may nonetheless discriminate against an out-of-stater’s fundamental rights if:
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Peculiar source of evil: The state establishes that the out-of-stater is a “peculiar source of evil” that the statute was enacted to rectify (Toomer v. Witsell).
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Substantially related: The regulation bears a substantial relationship to the state’s objective.
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Privileges or Immunities Clause of the Fourteenth Amendment
A state is prohibited from denying its citizens the rights and privileges of national citizenship. This issue usually involves the right to travel.
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Example: A state law limiting a new resident’s welfare benefits, as compared to older residents’ benefits, is unconstitutional (Saenz v. Roe).
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Federalism

