Fair enough. So is there anything in the Constitution to suggest that the United States has the power to enforce its laws, even amidst opposition? Oh yes, there's this:The enumeration in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people.
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
The Congress shall have Power to provide for calling forth the Militia to execute the Laws of the UnionAnd then there's this:
The Ratification of the Conventions of nine States, shall be sufficient for the Establishment of this Constitution between the States so ratifying the Same.
That amounts to a hill of beans. They left the Union, therefore; the laws of the Union no longer applied. The Constitution either makes secession illegal or it doesn’t, it implies.. nothing.
Fine. Okay. Makes perfect sense.
But once a state secedes, there is no federal law in that state.