tick. execs from facebook, google and twitter have been asked to testify on capitol hill next week, the topic being censorship and election interference. the nation's final farewell to senator john mccain begins today on what would have been his 82nd birthday. mccain's body will lie in state at the arizona capitol where people can pay their respects. a private ceremony will be held between two public viewings. on tuesday mccain's best friend in the senate, lindsey graham, gave an emotional farewell on the senate floor. >> he told me that principle and compromise are not mutually exclusive. and the foundation of a great person as well as a great nation if you want to help the country, be more like john mccain. i believe there's a little john mccain in all of us. and the lull of john mccain practiced by a lot of people can make this a really great nation.