Which level of government should have the power to legislate when it comes to immigration? Why?

What power regulates immigration?

According to the Supreme Court, lawmakers in Congress have the primary responsibility for regulating immigration. This power is considered "plenary," meaning the courts have little oversight of immigration laws passed by Congress.

the law in texas requires student to stay in school until they graduate or turn 19. however students who is at least 17 can drop out legally only if they are attending courses that are preparing them for high school equivalency exam and they must also have their parent's permission.