TPM: Wicker denies distributing sample ballot implying that he is a Democrat UPDATED

First we got the radio ads targeted at the black community implying that Musgrove is anti-Obama. Now there is this as reported by Talking Points Memo.

Check this out. The campaign of Sen. Roger Wicker (R-MS), who is running in a special election that won't have party affiliation listed on the ballot, is being accused by the Dems of circulating this misleading sample ballot that asks recipients to vote for the Democratic candidates in every race -- except his own:

The Wicker campaign denied any involvement.

UPDATED: This is the exact sample ballot prepared by the local Dems. Only this one has been doctored to show Roger Wicker as the Democrat.