Please take 3 minutes to watch this video. A 19-year old man, Zach Wahls, who was raised by lesbian mothers, speaks in defense of same sex marriage. But the most compelling argument he makes is that children raised by lesbian mothers have excellent outcomes. He is a prime example of what the research has already proven. Zach spoke on Feb. 1, 2011 before the Iowa State Legislature that is considering an amendment to the state constitution to ban same sex marriage.