Less than two weeks out from Election Day, Republican Mitt Romney has erased President Barack Obama's 16-point advantage among women, a new Associated Press-GfK poll shows. And the president, in turn, has largely eliminated Romney's edge among men. Those churning gender dynamics leave the presidential race still a virtual dead heat, with Romney favored by 47 percent of likely voters and Obama by 45 percent, a result within the poll's margin of sampling error, the survey shows. After a commanding first debate performance and a generally good month, Romney has gained ground with Americans on a number of important fronts,...