[snip] Behind the scenes, Kerry apparently has been having doubts, calling current and former Democratic confidantes to inquire just how much his gaffe hurt his presidential chances, according to several Democrats who spoke on condition of anonymity because the conversations were private. Kerry, who turns 63 later this month, had been planning to announce a comeback campaign in December or January. He had thrown himself into helping his party reclaim Congress in the midterm election, campaigning for roughly 80 House, Senate and gubernatorial candidates. [snip] Nonetheless, Kerry and his wife, Teresa Heinz Kerry, hope to boost their public reemergence with...