They've got muck; we've got rakes. TPM Muckraker

Source: "There Is Some Evidence [Sanford] Was Not Alone"

According to the source, a second car was identified at the Columbia airport, next to the SUV Sanford is believed to have used. Two additional sources in South Carolina politics said the same thing.

Separately, Will Folks, a former spokesman for Sanford who now runs a South Carolina political blog, is reporting that, according to a source, the Sanfords have been having problems in their marriage and have "been in marital counseling for several weeks now."

We should have some more information on this soon. Sanford's office has called a 2pm press conference, and Politico's Mike Allen tweets that according to the South Carolina press, the "woman question will be asked directly and clinically (no parsing)."