The Supreme Court will soon pronounce upon the constitutionality of California’s Proposition 8, which amended that state’s constitution to prohibit same-sex marriage, and the federal Defense of Marriage Act that was enacted into law in 1996 under then President Bill Clinton. This conversation with Ryan Anderson, co-author with Sherif Girgis and Robert George of the recently published What is Marriage?, engages the philosophical argument that there is a natural form to marriage which has been instantiated by the western legal tradition in various ways. This lively conversation debates the most basic questions on this subject in a serious and respectful manner. Don’t miss it.