A bill being proposed in New Hampshire would make felons out of Federal Law enforcement officers that attempt to enforce certain Federal anti-gun laws:

II. Any official, agent, or employee of the government of the United States, or employee of a corporation providing services to the government of the United States that enforces or attempts to enforce a act, order, law, statute, rule or regulation of the government of the United States upon a personal firearm, a firearm accessory, or ammunition that is manufactured commercially or privately in New Hampshire and that remains within the State of New Hampshire shall be guilty of a class B felony.

See also here and here for more views on the topic.

There are two non-obvious points I find very interesting with this.

1. It has been found, in the ninth circuit anyway that a state may charge a Federal law enforcement officer, performing acts he believed to be valid, is subject to state prosecution for crimes associated with that act.
2. The states, in effect nullified the Real ID act by refusing to comply with the Federal law.

I’m not particularily hopeful that it will get passed and actually come to it but assuming the bill goes into law I wish I had the time, money, and opportunity to sit around taking pictures and eating popcorn when the first Federal LEO gets arrested and tried.

I expect that there will be fireworks elsewhere and the issue will be settled before it come to that in NH.