CLEVELAND, Ohio (AFP) – US President Barack Obama Wednesday admitted some of his policies were unpopular and had not revived the economy quickly enough, but sought to rekindle his frayed bond with American voters. "It's still fear versus hope, the past versus the future," Obama said in economically bereft Ohio, pleading with voters to chose "moving forward" with him, rather than "sliding backward" with Republicans. Obama, seeking to reframe the political debate ahead of November elections in which Democrats fear thumping losses, slammed his foes for pitching the economy into a historic crisis, and "moralizing" about the ballooning deficit. But...