1970's songbird Linda Ronstadt, best known for her torch song-style and mellow ballads, is working overtime these days trying to persuade her fellow Arizonans that it's time to dump President Bush "right away." In an interview broadcast on Saturday, Ronstadt was in the middle of explaining to WABC Radio's Mark Simone why she prefers living in Arizona to Los Angeles or New York, when she added one caveat. "The politics are very conservative here and I'm not conservative. I'm having a hard time sometimes convincing people that we need to vote for a new president," she offered. When Simone begged...