about to receive a booster shot when he fell ill. powell was 84 years old. >> before becoming the top diplomat under george w. bush, he was national security adviser to president reagan and chairman to h.w. bush and president clinton. today president george w. bush said he was such a favorite of presidents that he earned the presidential medal of freedom twice. in his entertstatement, preside biden called him a friend and talks about what the nation lost today. >> he would want to be remembered as someone who cared about america more than life itself. and god love him, we're going to miss him terribly, terribly. terribly. >> the nation's first black defense secretary lloyd austin also paid tribute today. >> the world lost one of the