The U.S. 2nd Circuit Court of Appeals in New York agreed with a district judge that the provision of DOMA deprived Windsor of the constitutional guarantee of equal protection of the law.

NPR: High Court Skeptical Of Federal Marriage Law

Jeffrey Monsour, a 14-year employee of the Office for People with Developmental Disabilities, seeks unspecified damages, claiming violations of his rights to free speech and equal protection under the law, breach of contract and defamation.

WSJ: Worker sues NY over disabled care, retaliation

Advocates for the same sex couples tried to make a very simple case that the state's 97-year old marriage law, which refers to husband and wife, doesn't live up to modern standards of equal protection under the law.

NPR: New York Court Hears Gay Marriage Arguments

"I have come to believe that this is a question of fairness and of equal protection under the law, and that a civil union is not equal to civil marriage, " Baldacci, a Democrat, said in a statement released as he signed the bill.

CNN: Lawmakers approve same-sex marriage in N.H., Maine

Not surprisingly, this argument concludes by warning against the slippery slope: if you outlaw sharia because it includes some dirty water around the globe, you will have effectively outlawed all such religious and private adjudicative bodies unless you are going to discriminate against the law of Muslims, which would violate the First Amendment and the Equal Protection clause of the Constitution.

CENTERFORSECURITYPOLICY: Center For Security Policy

As a matter of historical doctrine, the old Equal Protection law would look with amazement on these developments.

FORBES: What hidden perils await her on the Court.

He sued to overturn the law on a variety of constitutional grounds, including that violated his equal-protection rights and it was a bill of attainder singling his business out for legislative punishment.

FORBES: Opinion, Or Manifesto? Judge Slams High Court's Economic "Surrender"