I think he's going after sanctuary cities, mostly blue cities in blue states. ICE has every right to be there and to arrest & deport illegals. Local authorities helping illegals to evade federal authorities are breaking the law and subject to the Hannah Dugan treatment. Eventually, the fascist, pro-crime politicians will have to cave & cooperate. Think of the mayor of DC. They will be humiliated in the process and Trump will get another victory. Politically, it could prove very helpful in the midterms.
Also, Trump is talking about to New Orleans, in a red state. It's not only blue states. I think that's political too except he'll get more local support, at least from the state.
“Incline my heart to your testimonies, and not to selfish gain!”
Psalm 119:36