If two states, such as Colorado and Nebraska, have a dispute over a law, the issue will be resolved in-

front of the Supreme Court.

Explanation:

When two or more states, such as in this case are having certain dispute then the Supreme Court is  having the jurisdiction.

For example this was especially often during the period when the country was created, as the states had border disputes. In those cases Supreme Court brought main decisions.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

the first forms of writing came from them in the form of pictographs around 3100 bc.