schwab, the eric and wendy schmidt fund for strategic innovation, and by the following -- koesht funding is provided by stevens, inc., and by pfizerer, inc. >>> edward o'keefe, welcome to "firing line." >> it's a pleasure to be with you on this historic program. >> here is a short list of american politicians who have tried to adopt teddy roosevelt's mantle. president george w. bush, president barack obama, republican senator mitt romney, elizabeth warren, the progressive senator from massachusetts, josh hawley, the conservative populist senator from missouri. what is it about theodore roosevelt that attracts such different contemporary politicians to his political ethos? >> margaret, i like to say that theodore roosevelt is a rorschach test. what you see in him says more about you than it does about him. i mean, if you see the 1912 bull moose progressive, you're probably elizabeth warren. if you see the trust busting republican who ascends to the presidency atop the american century you might be josh hawley. that's kind of the incredible thing about theodore roosevelt is he is a unifyin