His views on slavery and the dred cscott decision. Have there is this no restraint on taking slaves into the territories. Sunday, Opening Ceremony of the museum of the American Revolution in philadelphia. The speaker, joe biden, david mcculloch, the museum ceo Michael Quynh and journalist and author cokie roberts. Its my hope that this museum inspires you to become those active, involved citizens in this very great country because history has his eyes on you. And then at 8 00 on the presidency, talking about Florence Harding and the precedent she created as first lady. She had been in hospitals and in dire straits medically. She could relate to what they were going through. It was interesting because out of this veterans cause came the veterans bureau, right . This was the first time the United States had a bureau, what we would call the v. A. Today to take care of the veterans. Saturday is earth day. And well cover the march for science rally, including speeches from scientists and civic organizers as well as musical performances live from the National Mall in washington, d. C. At 10 00 a. M. Eastern on cspan. This week on q a, david mccum mcculloch. There are a dozen books about mccarthy but there is no biography of the senator who had the backbone to stand up to him first. Do you remember how you went about preparing for that speech . Hardest as i have ever worked on anything i delivered from a podium. David mccullough on the american spirit, sunday night at 8 00 eastern on cspans q a. The 18,000 square foot Richard NixonLibrary Reopens after a makeover. The renovated museum tells the former president s story through larger than life photographs, touch screens and video of nixons speeches and his eventual departure from the white house. Heres the reOpening Ceremony. Its 50 minutes. And for todays invocation, please welcome monsignor lawrence baird, pastor of our lady of Mount Carmel Church in newport beach. His presence today honors the late don bendetty, former chairman of the Nixon Foundation board and a parishioner at our lady of mount carmel. Don and his lovely wife dorothy will be joining us today. Have been devoted friends and supporters for over 25 years working with president nixon. And ark techs, don oversaw the construction of the original library, including the restoration of the president s birtsz place. Ladies and gentlemen, monsignor lawrence baird