TAHLEQUAH, Okla. -- The debate over same-sex marriage shifted Tuesday to a Cherokee Nation courthouse, where justices heard arguments in the case of a lesbian couple who want the tribe to recognize their union. Dawn McKinley, 33, and Kathy Reynolds, 28, have asked the tribe's highest court to throw out a lawsuit that halted their effort to file their tribe-issued marriage certificate. They contend that Todd Hembree, the tribe member and attorney who brought the complaint, had no standing to do so because he hasn't been harmed by their attempt to be recognized as a married couple. ''It doesn't affect...