ARTICLE IV - THE STATES

Section 1 - Each State to Honor all others
"Full Faith and Credit clause". States are to recognize judgments in other states. (There is a difference between judgments and laws, keep that in mind). A state does not necessarily have to accept a law made in another state if it conflicts with their own laws. Example : recognizing same sex marriages. States that do no allow that, do not have to recognize those unions that were okayed in other states.

Section 2 - State citizens, Extradition
Citizens of each State are entitled to privileges of citizens in other States (protection, right to travel through the state, own property, etc).
If someone commits a crime and flees to another state, that state has to deliver up the person to the state where the crime was committed.

Section 3 - New States
New states are approved by Congress. No new states can be formed within the jurisdiction of another state, or a state formed by combining all or parts of two or more states, unless the Legislature of those states approve it and also the Congress.
Congress has power to get rid of or make rules about property belonging to the U.S.

Section 4 - Republican Government
The United States guarantees every State a Republican Government (no monarchs, ruled by peoples vote). The U.S. will protect states from Invasion and domestic violence.