Explicación al aparente desplome de Gingrich en Iowa

Byron York, señalando fuentes locales, dice que es el resultado de la publicidad negativa y de las dudas sobre su elegibilidad:

In mostly private conversations, well-connected Iowa Republicans say they have sensed a drop-off in support for Gingrich in the last few days. (See Signs of Gingrich slipping in Iowa?) "People are saying OK, let's reassess this," one insider says of voter opinion on Gingrich. "Is this really a decision we want to make? What I'm hearing is thinking about the general election and the unpredictable nature of him as our nominee. I don't have any empirical data to back it up, but it's just a feeling I've gotten in the last 24 hours."

Gingrich has been the target of a barrage of attack ads on Iowa television and radio, particularly from Paul, Romney, and Perry. The consensus among Iowa GOP insiders is that those ads are beginning to take a toll. "That stuff has an impact, where people are at least going to pause" in their enthusiasm for Gingrich, says Bob vander Plaats, an influential Iowa social conservative leader.