Rep. Patrick Murphy (D-PA) has intitated legislation to repeal DADT. Sign the petition and let Congressman Murphy know you're behind him.
Let your Congress Critter know you support Murphy's legislation. Let the President know.
Let them know in no uncertain terms that DADT needs to go the way of the Dodo bird. It's wrong-headed, hurtful and dangerous.
In case you haven't seen it, Murphy was on the Rachel Maddow show last week.