Her debating style was rarely confrontational, and she appeared confident. In contrast to today, when she seems unversed on several important issues, she demonstrated fluency on certain subjects, particularly oil and gas development.

But just as she does now, Ms. Palin often spoke in generalities and showed scant aptitude for developing arguments beyond a talking point or two. Her sentences were distinguished by their repetition of words, by the use of the phrase “here in Alaska” and for gaps. On paper, her sentences would have been difficult to diagram…

She was not a particularly aggressive debater, and she rarely took an opportunity to challenge her opponents. But when pressed, she could be tough. In a roundtable discussion in October on the “Bob and Mark Show,” Mr. Halcro suggested that Ms. Palin had not attended enough debates.

“It’s been a year today that I’ve been on the campaign trail,” Ms. Palin responded, “attending many, many more forums, more debates, than either one of you, Tony and Andrew, because I had a primary opponent. You know, you got to have the balls to take it on in the early part of a campaign, and not just go right to the big show.”