Peggy Noonan pretty much hits the nail on the head

[Christians4LessGvt]

[BT]

GA

Murder
    16-5-1

Federal

Homicide
    18 USC Chapter 51

[Amianthus]

How dare Georgia try to preempt Federal Law. It's obviously totally unconstitutional...

[BT]

How dare Georgia try to preempt Federal Law. It's obviously totally unconstitutional...

Certainly they knew about the famous Scotus rulings on ditto laws.

[sirs]

LOL

[Michael Tee]

Georgia and the U.S. have similar definitions of murder.

BFD.

Some murders fall within Georgia state jurisdiction and others within Federal jurisdiction. 

There is no "ditto" here - - If the state and federal prosecutors cannot agree, the courts will decide which murders are federal offences, which ones are not. 

In the area of immigration, there is no STATE jurisdiction to investigate immigration status and then to prosecute illegalities.  That belongs to the federal government exclusively.

[Amianthus]

Some murders fall within Georgia state jurisdiction and others within Federal jurisdiction. 

Every murder I've ever heard of fell under BOTH of those definitions.

[Michael Tee]

<<Every murder I've ever heard of fell under BOTH of those definitions.>>

The definitions could both fit the same crime, but the circumstances of the crime would be such as to provide one or the other authority with jurisdiction.   In some relatively few cases there will be jurisdictional tugs-of-war between the Fed and State prosecutors but in most cases the jurisdictional lines between federal cases and non-fed are fairly distinctly drawn and not in dispute.

[sirs]

Congress has already given authority to the states to enforce existing federal immigration law, both in 1986, and reinforced under Clinton in 1996.  You have no tree to bark up, Tee