WASHINGTON (AP) - Everyone needs a soundtrack - even politicians. The presidential candidates who addressed the Democratic National Committee's winter meeting Friday got to choose their tunes, and it was an eclectic mix that reflected personal favorites and not-so-subtle messages. Some candidates requested two songs, one that blared as they approached the stage and another that played as they left the podium. The selections: _John Edwards: "This Is Our Country" by John Mellencamp. _Sen. Chris Dodd of Connecticut: "Get Ready (Cause Here I Come)" by the Temptations and "Reach Out," also by the Temptations. _Sen. Hillary Rodham Clinton of New...