The Dred Scott Decision of 1857
Eric Foner of Columbia University outlines the results of the Dred Scott v. Sandford U.S. Supreme Court case, which institutionalized the exclusion of African Americans from citizenship, and Republican denunciation of the Court's decision (including Abraham Lincoln's opposition to the ruling).
To view this clip, select "The Dred Scott Decision of 1857" under "African-American Experience Video."