[applause] >> for more on senate church and demand in his work, visit jim demint.com. here's a short author interview from c-span's campaign 2012 bus as it travels the country. >> whywhy did you decide to wrie the book? >> i was living in the netherlands for a year. year. i had a sabbatical and that was the first country that allowed country -- couples to get me to just as i arrived in massachusetts where he lived the supreme court said gay couples are not allowed to get married so i was watching the debate and watching what was going on in europe and realized the debate was very similar and focused on a lot of questions that i could answer as a social scientist. >> what is the current state of gay marriage in america in terms of states which permit gay marriage or states that are moving in the direction of realizing gay marriage? >> we have about 20 states that have utilize some form of relationship for same-sex couples. six allowed gay couples to g they realize that unless the parents had a relationship there was putting the kids in some danger, so there were lots of