WASHINGTON (AP) — As David Perdue campaigns throughout Georgia, the Republican candidate for Senate describes a struggling economy and people yearning for good jobs. It's not the emphasis that his fellow Republican, Gov. Nathan Deal, wants to hear. Deal is battling for re-election while Democrats emphasize the economy and remind Georgians that they have the nation's highest unemployment rate. Georgia isn't the only state where a governor on the ballot could conceivably undermine his party's Senate nominee, or vice versa.