I had the same thought. An act like this, coupled with administration inaction, will be the final straw. Arpaio is too well known and liked by common folk for this to be allowed. Big time mistake, IMO. They want war, they can have it (and I'm not just referring to the cartels...).
Two Words: Black Jack Pershing.
“They want war, they can have it..”
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Fine with that.
But just WHO is going to bring it to them?