Edwards might be Gaining in the polls

The Zogby Poll is consistent with other polls that have been recently released, showing Hillary Clinton losing around 10 percent of her support among Democratic voters. The question then, who is gaining at her expense. In Zogby's Poll, Obama has gained 2 percent but Edwards has gained 4 percent. One possible conclusion is whatever support Hillary is losing 40 percent of her lost has gone to Edwards as compared to Obama's 20 percent. The remaining 40 percent is divided among the rest of the Democratic Field or went to the undecided category. This 4 point gain might be the result of Edwards going after Hillary in such an aggressive manner. If that is case, the main question is, does Edwards have enough time?