KEILAR: Royalty arriving here in the U.S. Prince Charles and Camilla stepping on to American soil last night, in our nation's capital. This is the first stop for them in the four-day trip. The couple visiting the Lincoln Memorial. Just in about half an hour now. Now, after that, let the whirlwind tour begin. Stops today at the beautiful MLK Memorial, as well as Mount Vernon outside of Washington, D.C. They've got the Magna Carta, the Shakespeare Theater. You know what, that is all before afternoon tea. Royal correspondent Max Foster is in London, tracking their trip. They're staying pretty busy, Max.</s>MAX FOSTER, CNN ROYAL CORRESPONDENT: Yes, afternoon tea. You have time for that wherever in the world you are. It is a busy trip. The highlight will be tomorrow when they meet President Obama and Joe Biden at the White House. That ought to be interesting and always a highlight of these tours. But what they're trying to do is emphasize these ties between the U.K. and U.S. So, going along and seeing the Magna Carta is part of that and really just sort of emphasizing that there are these great ties. Prince Charles is telling the media the other thing he wants to encourage whilst he's over there is sustainability. So, knowing where your food comes from. He is a genuine pioneer in organic farming on his estate. He wants to take that message to the U.S. and talk a bit about formation. So, working on behalf of the government to do that.</s>KEILAR: Yes, boosting that very special relationship as it's called. Max Foster, we know that you'll be watching every move. And it sounds like they're going to be around quickly. All right. Thanks, Max. President Obama on tour today, but his is a little bit more of a business trip. He's heading to Cleveland to talk about middle class economics. We'll have a live report, next.
Prince Charles and Camilla Arrive in DC.