Illinois Senator Mark Kirk has joined Ohio Senator Rob Portman to endorse same sex marriage. Portman announced last month that he had changed his opinion on the issue after his son told his family that he was gay.
Kirk said in a statement that after taking time off after suffering from a stroke he wanted to return to the senate with an open mind and greater respect for others.
The Illinois senate recently voted in favor of legalizing same sex marriage on Valentines Day.
The Supreme Court listened to arguments last week in two cases on the issue and the decision by the court is expected in June.