Secretary of State John Kerry has declined to elaborate on his beliefs regarding the assassination of President John F. Kennedy 50 years ago this month. During an interview with NBC that aired last week, Kerry indicated he supports the idea of a conspiracy surrounding Kennedy’s death. He was questioned about those remarks Sunday by NBC’s David Gregory.

David Gregory: “Mr. Secretary, a final question before you go. You gave some comments in light of the 50th anniversary of the assassination of President Kennedy to NBC News that have now been widely broadcast and reported on. And in those comments, you said this: 'To this day, I have serious doubts that Lee Harvey Oswald acted alone.' That certainly would be surprising to a lot of people that those are your views. Would you care to elaborate?”

John Kerry: “No. (Laughter.) I just have a point of view. And I’m not going to get into that. It’s — you know, it’s not something that I think needs to be commented on, and certainly not at this time.”

David Gregory: “Do you think the conspiracy theories — his involvement with Russia, motivation from the Soviet Union or Cuba — are valid at some level?”

John Kerry: “David, I’m not going to go into it. It’s just inappropriate, and I’m not going to do more than say that it’s a point of view that I have. But it’s not ripe or worthy or appropriate for me to comment further.”