Debate coach: Britta' s command of the historical facts was better than Robert' s, and that led to the distinct impression that Britta won the debate  But it' s also important to evaluate how reasonable the debaters arguments were, regardless of their ability to bring the facts to bear in those arguments
When you take that into consideration, Robert' s debate performance was as good as Britta' s
winning a debate requires having a good command of the facts