Differences in healthcare and farm policy were among the distinctions the four major D-F-L candidates for U.S. Senate drew as they met for one last debate before the primary elections. Onstage Sunday at the Fitzgerald Theater in St. Paul, the candidates voiced AGREEMENT on many issues, continuing a trend of consensus in this year's campaign that has made differences between the candidates hazy. Odds are long on Tuesday for the candidate with the least funding, Jerry Janezich, who used the debate to make an impassioned appeal for campaign finance reform. Minnesota Public Radio's Amy Radil reports.