With one primary campaign debate down and eleven more to go, the commentariat already is picking winners and losers among the Democratic Party's two dozen presidential hopefuls. Like actors after a Broadway opening night, the Democrats on stage in Miami last month have poured over the reviews. The voters should ignore them. If the two evenings and the after-action analysis have revealed anything about the candidates' qualifications to be President, it's purely accidental. Count on their debates in Detroit on July 30-31 to be just the same.