witho shane, deputy editor "military times," you can follow his reporting on twitter as well , at @leoshane. >> the first democrat to declare a run for the presidency in 2020 offers his vision for america in his book "the right answer: how we can unify our divided nation." he's interviewed by donna brazil . >> he been a number of congress now since 2013. you have had an opportunity to work with democrats, republicans, but in the book, you offer partisanship that rewards vision. or anyink the president other elected leader in this country should effectively represent everyone, if they voted for them or not, and they should almost take a pledge never to divide us. that doesn't mean they don't go out there and say why they should vote for me over the other person or why my ideas are better than the other person's -- why they there future they are envisioning is better than the other persons, but taking a step where you are cultivating a spirit of division is, i think, one of the things that has gone on in this country right now which is really insidious, and i do think if you have the privileg