Same-sex marriage and the U.S. Supreme Court will be the focus of Tuesday’s University of Louisville Kentucky Author Forum at the Kentucky Center.

Attorney David Boies will be interviewed by Jeffrey Toobin of The New Yorker and CNN.

Boies was part of the legal team that successfully challenged California’s same-sex marriage ban, Proposition 8. Toobin has written multiple books about the modern-day Supreme Court.

In an interview with WFPL, Toobin weighed in on a looming decision from the nation’s highest court on cases from Kentucky and three other states that are expected to settle the issue of same-sex marriage nationwide.

Activists, attorneys and plaintiffs in the case before the Supreme Court largely anticipate the justices will likely rule in support of gay marriage. However, because the court has a history of surprising people, what are your expectations? Do you think there is a likely outcome in this case?

“It certainly looks like there are four virtually certain votes for the plaintiffs and for a nationwide right to same-sex marriage: the four Democratic appointees— Ruth Ginsberg, Steven Breyer, Sonia Sotomayor and Elena Kagan. The question is can they get a fifth vote? Now, Anthony Kennedy, though usually conservative has been a stalwart supporter of gay rights and the impression many people have—and I think I will include myself in the group—is that he will vote for a right to same-sex marriage, but predictions are risky.”

You can hear the rest of the interview here:

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