Same-Sex Marriage Positions UntenableJuly 15, 2004 by Roger F. Gay The debate over a constitutional amendment that would limit marriage to opposite-sex couples is shaping up as expected. Such an amendment is supported by Republicans and President Bush. John Kerry and John Edwards favor civil unions for same-sex couples but insist that marriage and family issues should be left to the states.The Kerry-Edwards position suffers an obvious flaw. With state courts, such as the supreme court of Massachusetts, finding prohibitions against same-sex marriage unconstitutional, state legislatures are left without the power to limit who can get married to who....