minnesota education commissioner brent caselli is will be our during washington journal, starting at 9:30 a.m. eastern. >> next on the civil war, yale university professor david blight talks about the political and often religious rhetoric that frederick douglass used when writing or speaking about abolition or the civil war. this 50 minute talk was part of a conference hosted by the university of virginia center for civil war history. dr. blight: thank you gary, liz, joan, will and other friends. i learned a long time ago that when they invite you somewhere, just say yes and that figure out -- then figure out later what you will talk about, or talk about whatever they want you to talk about. because it is always fun and always important and there is no better audience. virginia -- i am not above promoting a new book, why not? [laughter]