Cynthia McKinney was defeated in a Georgia Democratic primary a month ago and has since been completely cut off by mainstream Dems -- but that inconvenient fact hasn't stopped Republicans from tying current Dem candidates to the long-gone McKinney as a scare tactic. A new ad by the Republican 527 group The Economic Freedom Fund likens moderate Dem Rep. Jim Marshall to Ted Kennedy, Hillary Clinton ... and McKinney. Coming next: An EFF ad in which their staffers beat a dead horse. View the ad below.