Listen to Supreme Court Justice Anthony Kennedy at arguments

Supreme Court Justice Anthony Kennedy is considered the US high court's "swing vote" - meaning he has sided with both the court's conservative and liberal wings on divisive cases.

In this clip, Kennedy muses about the time between when the first state allowed gay marriage in the US and the challenge against gay marriage bans arriving at the court, questioning if there has been sufficient time to understand the ramifications of same-sex marriage.

Read more at Meet the Supremes.