also, jeffrey callan joins us with his new book, "let the people rule."re to watch c-span's washington journal beginning live at 7:00 a.m. eastern this morning. join the discussion. [cheers and applause] president obama: hello, everybody. take you so much. have a seat. oh, hello, london. it is good to be back in the u.k.. thank you for that wonderful introduction. was saying backstage -- i would vote for her for something. i want to thank our u.s. ambassador for all the great work he has done. and it is wonderful to see all of you. i guess you all know why i came this week. it is no secret. nothing was going to stop me from wishing happy birthday to her majesty. [laughter] and meeting george. [laughter] who was adorable. michelle and i had the privilege to visit with her majesty and the duke of edinburgh yesterday. i can't tell you what we talked about. i can to you that i hope i am such a engaging lunch partner when i am 90. and i would like to thank her majesty for letting us use one of her horticultural halls for this town hall. i also just came from t