He says it's "a speech that changed the United States." Barack Obama's keynote address at the 2004 Democratic National Convention was the topic of a class taught by Univ. of Kansas political communication professor Robert Rowland. Watch "Lectures in History: Obama's 2004 DNC Keynote Address," 10/7 at 8pm ET on C-SPAN 2: https://www.c-span.org/video/?529961-2/obamas-2004-dnc-keynote-adress | American History TV