out there make bing the decisions about who to support and vote for ultimately is what the candidate's world view is, what their platform calls for concretely, how they've conducted themselves in the past as a window into how they might be in the future, and what we can best find out about their mettle and their judgment. who will they fight for, what will they fight for? can they be trusted to do what they say? everything else is noise. and trust me, there will be an awful lot of noise in the next 22 months. we're committed to try to turn down the din and listen and ask and get questions and answers about what matters. tonight, you can hear directly from warren about what her vision for the country is in just a few minutes when she appears for an exclusive interview with my colleague, rachel maddow. and just ahead, a democratic governor who's planning on putting the single most important challenge of our time at the center of his possible campaign. i will talk to him about it next.