The 10th amendment contains 2 provisions for which powers are granted to the States:
1. Powers not delegated to the United States by the Constitution, and,
2. Nor prohibited by it to the States.
The 'it' above refers to the Constitution. If the Constitution prohibits the States from having a power,
then they don't get that power. Passing any unconstitutional law would fall under that prohibition.
States cannot for example ban personal ownership of firearms, because the Constitution prohibits states from having the power to do that, because the 2nd Amendment is a constitutional protection against such a ban,
the 10th Amendment and 'states' rights' notwithstanding.
That almost makes sense, if I start with the assumption that the Constitution was written by morons.
Why would the 10the Amendment talk about limits on the federal government for 11 words, diverge to talking about the states for 7 words, then finish off with 10 more words talking about limits on the federal government, just to make it possible for you to make a stupid statement?
The phrase is clearly talking about powers that are probated to the states, not from them.
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 first two conditions in the 10th Amendment are limits on the States' power.
1. Powers NOT delegated to the US. That limits the States' powers by removing all powers that ARE delegated to the federal government OUT of those reserved for the States.
2. Prohibited by the Constitution to the States. That limits the States' powers by removing all powers that the Constitution prohibits the States from having.
ROFL... what a dolt.