Anything can happen, or so the Democrats better hope

Gallup’s weekly tracking poll of 2010 congressional voting preferences for August 23-29 has Republicans leading Democrats by 51 percent to 41 percent among registered voters. The 10-percentage-point lead is the GOP’s largest of the year and, in fact, is its largest lead in Gallup’s history of tracking the midterm generic ballot.
The “enthusiasm gap” is even more pronounced. Gallup finds that Republicans are now twice as likely as Democrats to be “very” enthusiastic about voting come November, the largest such advantage of the year.
I’m obliged to add that anything can happen during the next two months. But more than any old thing will be required if the Democrats are to avoid a crushing defeat at the end of those two months.
JOHN adds: The Gallup graph shows how striking today’s finding is. It may be an outlier; on the other hand, it is a “registered voter” poll, and Republicans can expect to do considerably better than a typical registered voter survey, especially in an off-year election: