All of the 50 states pay federal taxes. The federal govt is sworn to uphold the Constitution. What is difficult to understand here?
U.S. Constitution Article 4 Section 4:
"The United States shall guarantee to every State in this Union a Republican Form of Government,
1. The act of invading; the act of encroaching upon the rights or possessions of another; encroachment; trespass.
So..should we just close the border and not allow any Mexicans to come to the US to work anymore? Just trying to understand your position on the matter.