An Old Dog Learns A New Trick?

Senator Arlen Specter today called for the repeal of the Defense of Marriage Act in Huffington Post reports The New York Times.

The time has come to repeal the 1996 Defense of Marriage Act (DOMA). Enacted 13 years ago when the idea of same sex marriage was struggling for acceptance, the Act is a relic of a more tradition-bound time and culture.

Representative Joe Sestak, Specter’s primary opponent, was quick to point out Specter strongly supported the Defense of Marriage Act back in ’96 as well as was a supporter of a constitutional amendment to make marriage  . . . you know . . . a hetero thing.

Is this just political opportunism or is this a come to Jesus moment or a combination of both?