(CNN) – Parts of a 2007 infomercial that features Arizona Senate hopeful J.D. Hayworth are hitting Arizona airwaves today – but this time as part of a McCain campaign ad that slams Hayworth over his involvement with a company called National Grants Conferences. Hayworth, a radio host and former congressman, recorded the infomercial in 2007. The ad promised free information about "hundreds of billions of dollars in government funding" to individuals who attend a conference on the topic.