Can't say I'm a real fan of Pat Robertson.
Stewart went on to assert that, if God is in control of evertyhing, then he must have had a reason for allowing the Supreme Court to reach the decision that they did
I don't think that God takes an active hand in every supreme court decision. I have never been of the opinion that God controls every aspect of daily life: that's as much of a superstition as when people believed God personally controlled the path of the sun and the earth. So while I don't think Robertson is a great example of Christian tolerance and love (and humility), the Bible does say that we should pray for God's will to manifest itself on earth. Since there is ample evidence in the Bible that sodomy isn't within God's will, praying for it to be outlawed is praying that the United States will uphold God's laws, something that a reasonable person might easily believe is in God's will.