Franken said he learned that 21% of Americans received most of their news from talk radio, an almost exclusively conservative medium. "I didn't want to sit on the sidelines, and I believed Air America could make a difference", he said. In November 2003 Franken talked about moving back to his home state of Minnesota to run for the Senate. At the time the seat once held by Wellstone was occupied by Republican Norm Coleman. At a 2004 Democratic presidential campaign event, Franken tackled a man who was allegedly threatening other attendees and heckling Governor Howard Dean. In 2005 Franken announced his move to Minnesota: "I can tell you honestly, I don't know if I'm going to run, but I'm doing the stuff I need to do in order to do it." In late 2005 he started his own political action committee, Midwest Values PAC. By early 2007 the PAC had raised more than $1million.