for worse, fear is a motivating factor in politics, in how we act and how we vote, and what donald trump has done is tapped into that fear and things that we would normally consider extreme are being accepted as reasonable because there is so much fear in the mix, so the idea of excluding persons of islamic descent, normally that would seem outrageous. now there's fear, folks are saying hey maybe that makes sense. think back to the japanese internment or the chinese exclusion act. those things happened because there was an environment of fear, whether economic fear with the chinese exclusion act or foreign policy fear with japanese internments. >> i think trump -- >> all of you one minute. stay with us. there's a lot more ahead. we'll be back. coming up, justice scalia's controversial comments about black students, and what they mean for affirmative action. plus, outrage in chicago, and a mayor under fire, as