61.   But during a presidential debate, she refuses on moral grounds to answer whether she has ever been unfaithful to her husband.

62.   But the presidential debate commission has said it would be amenable to discussions on format once everyone agrees to participate in the debates themselves.

63.   But the second presidential debate, on Tuesday night, focused largely on foreign policy.

64.   But they have nevertheless served as the point of reference for presidential debates over tax cuts and spending plans.

65.   By any measure, this was the toughest presidential debate involving Republicans or Democrats this year.

66.   By putting economic issues firmly on the agenda, Forbes and his friends hope to wrestle the presidential debate away from the Gingrich crowd.

67.   Carlin, along with a group of university communication professors, drafted a set of seven key points for how to get the most of the presidential debates.

68.   Candidates are used to sharing the stage at presidential debates with television anchors and print reporters.

69.   Clinton, at a presidential debate, gives unconditional support for the commission report that called for halt of sibling immigration.

70.   Clinton, as he continued to demonstrate in the presidential debate Wednesday night, is constant in one area.