Part 2 of 2. Introduction to debate lectures. Lincoln-Douglas Debate course taught by Jonathan Wolfson at SciAcademy in New Orleans. In this clip, Jonathan discusses the key pieces of an argument (claim, warrant, and impact) and the various types of evidence that are used in a debate round. This is lecture 1 in the series brought to you by TheGreatDebate. Stay tuned for more videos posted every week.