Ford made these plans long before our beloved Ronald Reagan made his plans.
I was just discussing that with my husband and figured the WWII Memorial stop may have been added in since the Memorial is relatively new.
I took a several week vacation to DC about a year ago. If you haven't been there the past few years, I suggest a return visit. They've renovated the National Archives, completed the WWII memorial, and added a few new museums, as well as a new wing (reached by bus) to the Air and Space museum. I can't wait to go back again.