Maybe because they know how the democrats are going to use this and are afraid of getting covered in the mud the left is slinging! But, at least Foley was aware of the negative fallout and resigned immediately - unlike the democrats caught in scandals or ethic violations!
This is just another example of the democrats not having any luck in running on the issues - so they have to divert stupid people's attention away from their lack of any real plan by "uncovering" all these scandals involving the horrible, de able Republicans. What a joke!