At one point in the spin session after Monday's Democratic presidential debate in Iowa, Rep. Dick Gephardt referred to something he called "non same-sex marriage." By that, he apparently meant what other people refer to simply as "marriage." But Gephardt's painful locution served to show how flummoxed and tongue-tied the marriage issue has left some of the Democrats who want to be president. During the debate, only non-candidate candidates Carol Moseley Braun and Al Sharpton made clear, unequivocal statements of support for gay marriage. The others hedged and hemmed and hawed. For example, North Carolina Sen. John Edwards said his...