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National Republicans won't help Sanford

NBC News has confirmed that the National Republican Congressional Committee has decided -- for now -- not to assist former Gov. Mark Sanford in the special congressional election in South Carolina.

"Mark Sanford has proven he knows what it takes to win elections. At this time, the NRCC will not be engaged in this special election," said NRCC spokeswoman Andrea Bozek.

This announcement by the NRCC comes after Sanford's ex-wife accused him of trespassing at her home. Sanford, a Republican, faces Democrat Elizabeth Colbert Busch in the May 7 general election.

In addition, House Majority PAC, a Democratic Super PAC, announced that it will begin airing a new six-figure TV ad hitting Sanford for his affair and misuse of taxpayer dollars.

"He charged us $400,000 to travel around the world -- to France, China, and Argentina," the ad goes as it shows an image of a couple holding hands.

The ad ends with these words, "Mark Sanford doesn't share our values."

Meanwhile, Sanford has begun to air his own TV ad knocking Elizabeth Colbert Busch, National Journal reports.

"Elizabeth Colbert Busch says she knows jobs and will be independent, but she's not telling you she's supported by labor unions."