States' rights indicates the political rights and powers granted to the states of United states by the constitution.
Explanation:
Under the states rights the federal government is not allowed to interfere with the powers of the states implied to them by the US constitution.
States cannot form alliances with foreign governments, war and export and import duties.
The three powers of state are Legislature, Executive and Judiciary. Checks and balances notes that the three powers are in a equal and balanced way.
Answer: The federal government and the majority of states have income taxes, but their rules and rates can vary widely. Federal taxes are progressive, with higher rates of tax on higher levels of income. Some states have a progressive tax system, while others impose a flat tax rate on all income.
The 13th, 14th, and 15th Amendments of the U.S. Constitution were designed to free and help and ensure equality for former slaves. Hope this helps.
It would be "the Environmental Protection Agency" that primarily deals with domestic policy issues, since this agency protects the environment of the United States.