WASHINGTON – Lots of states feud with the federal government. But Arizona has become something of a poster child of late. Gov. Jan Brewer’s finger-wagging tarmac confrontation with President Barack Obama made national news in January. Her subsequent nomination to a Time magazine online poll of the 100 most influential people in the world was evidence, the magazine said, that “Arizona has faced off with the federal government like no other state in recent memory” under her leadership.