intermigration การใช้

• After all, he wrote,  it is a settled doctrine of this court that the Federal government can exercise no power over the subject of slavery within the States, nor control the intermigration of slaves, other than fugitives, among the States .  And although the Territories Clause may grant Congress the authority to organize a government over public domain, it did not confer Congressional power to regulate municipal institutions, such as slavery, in the territories.