Leading associations of psychologists, psychiatrists and behavioral scientists explain why ending the prohibition on marriage for same-sex couples is in the best interest of children being raised by these parents. The brief discusses empirical research which has consistently shown that lesbian and gay parents do not differ from heterosexuals in their parenting skills and their children do not show any deficits compared to children raised by heterosexual parents. Whitman, Osterman & Hanna LLP and Jenner & Block are counsel for amici.