HOPELESSHas the GOP given up on 2012?http://nymag.com/news/features/gop-primary-heilemann-2012-3/[M]any Republicans are already looking past 2012. If either Romney or Santorum gains the nomination and then falls before Obama, flubbing an election that just months ago seemed eminently winnable, it will unleash a GOP apocalypse on November 7—followed by an epic struggle between the regulars and