BLITZER: Welcome back. We are following the motorcade in California right now where the hearse carrying the casket of former First Lady Nancy Reagan is making its way to the Ronald Reagan Presidential Library in Simi Valley. Waiting for the arrival at the Reagan Library is Sara Sidner who is joining us now. Sara, the former first lady will lie in repose there. Who's expected to pay their respects today?</s>SARA SIDNER, CNN CORRESPONDENT: We are expecting the speaker of the House, Paul Ryan, to show up. But, Wolf, this is about the public's chance today to pay their respects, final respects to former First Lady Nancy Reagan. We expect her hearse to come in about 10 minutes. It will be at the bottom of the hill and it will come up the hill to a majestic view here and in to a very, very powerful scene at the Ronald Reagan Presidential Library. We have been inside to take a look and they are expecting quite a few people. They will be bussing the public up here. We know there are quite a few people expected to be here. She had a lot of friends in a lot of police, including political heavyweight, including George W. Bush. We are expecting First Lady Michelle Obama to come on Friday. We're also expecting Hillary Clinton, Newt Gingrich. But there are some Hollywood celebrities who had close ties with her, including Mr. T. I bet you remember, remember when he was dressed in Santa Claus outfit and she sat on his lap. It was her having a good time. There are a lot of people around the community who feel a strong tie to Nancy Reagan and what she brought to the table as the wife of the president. And as you know, Wolf, she was so close to her husband. So much love there and she will be buried next to him.</s>BLITZER: Such a wonderful love story, indeed. Sara, thank you very much. Coming up, an ISIS operative spills his secrets to the United States. The crucial information he's provided about chemical weapons and how it is impacting U.S. air strikes underway right now in Iraq.
Awaiting Arrival of Nancy Reagan's Casket at Reagan Library