it's drawing in our white brothers and sisters into these conversations. >> white people talk about it too, as we saw today. >> separately. >> it gets pretty polarizing sometimes. >> pretty good thing. can't solve it all in one day but this is a good thing. >> we want to thank all of our guests for joining us tonight. >> and a big thanks to our wonderful audience here in philadelphia. for chris and for myself, good night. what i think is quite clear is the country wants to move in a different direction. >> a half century after his death, robert f. kennedy remains a hero to millions of americans. he was tough. >> whose back are you going to break? >> yet compassionate and idealistic. >> negro citizens are being treated as second class people. that's something that needs to be done about it. >> today, as in 1968, america is