The Democratic Campaign Congressional Committee began airing radio ads Tuesday targeting Republican U.S. Rep. Bill Young and others in senior-heavy districts nationwide for supporting a budget proposal that could reduce Medicare spending.

Young, 80, is the longest serving Republican in Congress and represents Pinellas County. That's also home to politician-in-waiting, former Gov. Charlie Crist, an ex-Republican turned independent — oft-rumored to be considering becoming a Democrat.

But in Tallahassee this week for the unveiling of his gubernatorial portrait, Crist downplayed such talk.