Will gay marriage work in favour of the polygamists? The mere suggestion stirred strong emotions when same-sex marriage was at the top of the national agenda. Now it’s no longer academic. In emails and interviews with Canadian Press, Winston Blackmore and his lawyer confirm they will cite the decisions extending marriage to gay couples as part of their defence. Blackmore, is accused of having 20 wives at his home in Bountiful, B.C., while his co-accused, James Oler, who faces one count of polygamy. Their legal gambit may backfire, though. Experts have said that same-sex marriage is as likely to work against Blackmore and his co-accused because the court decisions affirm the value of monogamous marriage.