According to this story of a couple of days ago, Sanford's opponent, is up by 9 points in a poll
http://www.huffingtonpost.com/2013/04/25/elizabeth-colbert-busch-fundraising_n_3157467.html
WASHINGTON -- Elizabeth Colbert Busch raised $874,065 over the past two months in preparation for her special election matchup against former South Carolina Gov. Mark Sanford, according to a report filed on Thursday. Colbert Busch, a Democrat, is running against Sanford, a Republican, in a special election for the House in South Carolina's 1st district, where Sanford formerly served as U.S. representative.
The big fundraising haul shows an improvement over the $300,000 Colbert Busch raised in the lead up to her primary election in February. She has been aided by her famous brother, comedian Stephen Colbert, who has appeared at multiple fundraising events for her campaign.
Nearly 40 percent of Colbert Busch's fundraising came from small donors, while some $96,000 came from PACs and candidate committees. Most of the PAC contributions were from leadership PACs controlled by Democratic members of Congress.
Recent polls show Colbert Busch opening a significant lead over the scandal-plagued Sanford. A Public Policy Polling survey released on Tuesday found the Democrat up by 9 points in what should be a Republican stronghold.