Tea party activists are trying to energize conservative voters to propel Republican Christine O'Donnell to a victory in Delaware's U.S. Senate race.
More than a thousand people gathered Sunday at a rally in Wilmington to cheer on O'Donnell and GOP House candidate Glen Urquhart, another tea-party-backed candidate.
The rally was led by the California-based Tea Party Express, which spent heavily on advertising for O'Donnell in her primary campaign against longtime congressman Mike Castle.
O'Donnell has taken in millions of dollars since her primary win but trails Democrat Chris Coons in polls in the special election for the Senate seat long held by Vice President Joe Biden.
Biden is scheduled to attend a Democratic rally in Wilmington on Monday.
