JERSEY CITY, N.J. (AP) — Donald Trump says "you don't learn that much from tax returns," a dubious assertion that has renewed attention on his refusal to release documents that could shed light on his tax rate, charitable giving and foreign business ties. Trump's Democratic rival, Hillary Clinton, was happy to seize on the issue, questioning in the first presidential debate what Trump is trying to hide by bucking decades of campaign tradition in keeping his 1040s private. Suckers, unintelligent, dumb?