[JURIST] US President Barack Obama supports repeal of the Defense of Marriage Act (DOMA) [text; JURIST news archive], Press Secretary Jay Carney announced at a White House press briefing [text] Tuesday. Carney also said that Obama supports the Respect for Marriage Act [text], which was introduced by Congressional Democrats [JURIST report] in February to repeal DOMA, the 1996 federal law that defines marriage as a "a legal union between one man and one woman as husband and wife." Carney relayed…