[Mo1]

The feds (INS/ICE) have told the states and local law enforcement that rounding up illegals is the job of the feds and that their help isn't wanted

If you are talking about Deporting ... yes that is the feds responsibility .. because of legal reasons

But the States can report illegals to the feds

[JeffAtlanta]

But the States can report illegals to the feds

They have tried, but they feds don't act on it. State and local authorities just give up.