WASHINGTON (AP) — The Republican race for a presidential nominee is being driven almost entirely by concerns over taxes, joblessness, the deficit and the dismal state of the U.S. economy.That's even the case when it comes to foreign policy.Rick Perry wants a reassessment of how to wind down the war in Afghanistan and whether money is "best spent with 100,000 military who have the target on their back." At the spectrum's other end, Ron Paul seeks radical retrenchment because, in his words, "we're going broke."Economics is increasingly driving how Americans think the U.S. should act in a changing world.The tone also shows America has in many ways moved on from the Sept. 11 attacks and a decade of foreign policy defined by the Bush administration's war on terror.