mr. humphrey, with that title, what your duty? i'm the ambassador for microsoft when it comes to public policy, innovation and technology. grew up on capitol hill and participated in community activities when it comes to talking about technology. >> what are some of the issues where microsoft was intersecting with public policy. >> guest: we are intersecting when it comes to artificial intelligence, when you think about those policy issues, and think about vehicles or research and development, high-skilled immigration, take note of different individual participating today and part of our microsoft research. a lot of them are high-skilled visa holders who are making a difference and making many contributions to not only the u.s. but to the world when it comes to innovation and technology. >> host: sounds like one of the new issues on the communicators is artificial intelligence, we have not talked about it much yet. where is the public policy. >> guest: a.i. is in early stages. frankly, it's kind of like what think about one of our

there is also hubert humphrey, here's another clip. [applause] >> mr.nt, 1000 of your friends, led by that able and attractive young senator, jack kennedy have gathered -- [applause] have gathered to celebrate your birthday. i have been honored to have the assignment of speaking for the whole group, wishing you a very, very happy birthday. [applause] if scheduling was arranged fight arranged by democrats and is led by democrats. i believe, mr. president, the happy birthday wish is nonpartisan and comes from americans everywhere. and freeman everywhere who cherish liberty. happy birthday harry truman. [applause] david: this is also from the 75th birthday celebration in 1959. here is a letter from lyndon johnson to president truman. he said, have a wonderful day in independence, he would not have missed it for all the prize beef cattle in texas. that is the way he talked, he like to butter people up. all right, who is playing the piano? >> richard nixon. david: yes. this was in 1969. at the truman library. we have some correspondence from nixon to truman

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