A Gallup poll released Dec. 20 finds that Hillary Clinton generates far more fear among opposing partisans than any other candidate:

[A] question included in the November and December Gallup Panel surveys finds a majority of Republicans alarmed by the prospect of a Clinton presidency, and insufficient positive sentiment among Democrats to neutralize Republicans’ alarm.

Asked whether they would be “excited,” “pleased,” “disappointed,” or “afraid” if each of various candidates became president, more than half of Republicans (62%) say they would be afraid if Clinton were elected. On the flip side, barely half as many Democrats (35%) say they would be excited by this outcome.

No other candidate from either party generates as much cross-party fear as Clinton does among Republicans. The closest are John Edwards with 31%, Obama with 30%, and Giuliani with 29%.

To me, this is evidence against the Ezra Klein hypothesis that Hillary is as electable as the other Democrats. As I wrote before, it has to be harder to win a general election when your opponents start out energized against you. (Gallup’s analysis gives more weight to her performance in recent trial heats, which I see as poor predictors of performance.)