Senator Klobuchar believes DOMA is unconstitutional and is co-sponsor of the Respect for Marriage Act which seeks to repeal DOMA.
He has stated publicly that he believes DOMA is unconstitutional and should be repealed. In fact, Senator Franken is co-sponsor of a bill (The Respect for Marriage Act) that would repeal DOMA.
Senator McCain is opposed to gay marriage.
Senator Lugar does not support gay marriage.
Senator Blunt is against gay marriage.
Senator Sessions is opposed to gay marriage.
Senator Wicker is opposed to gay marriage.
Senator Enzi is opposed to the legalization of gay marriage.
Senator Begich is a supporter of same-sex marriage.
Senator Robert is opposed to same-sex marriage.
Senator Alexander opposes same-sex marriage.
Senator Barrasso opposes same-sex marriage.
Senator Vitter opposes same-sex marriage.