If he doesn't land punches tonight against Donald Trump, some warn, 'it might be over.'Nobody is more nervous about this week's debate than Jeb Bush’s top fundraisers -- and no audience will have more to say about his future viability as a candidate. New York Jets owner Woody Johnson knew it. He recognized the group assembled at his Rockefeller Center office in Manhattan last Wednesday was in need of some reassurance after Bush’s unimpressive performance in last month’s GOP debate, so Bush’s national finance chairman, recalled one attendee, gave a personal pledge: Jeb would be “well prepared” for the second...