If you're not sure what the Defense of Marriage Act is, read What is DOMA?.
On February 23 of this year, we have United States Attorney General Eric H. Holder Jr. sending a letter to Congress stating that the Justice Department has changed its position on DOMA, the Defense of Marriage Act. The Justice department will take the position in court, and more specifically in two pending cases, that the Defense of Marriage Act should be struck down as a violation of same-sex couples' rights to equal protection under the law. The objections of the Justice Department are that, first, section 3 of DOMA violates the equal protection component of the Fifth Amendment with respect to same-sex couples who are legally married under state law.
In response, House Speaker John Boehner and