michael stokes paulsen and his son luke co-authored the book "the constitution: an introduction". they discussed how the document has been ended debate since it was first written. >> welcome, everyone. it is an honor to be here at the national constitution center discussing an interesting new book by the father and son team. one thing we have in common is we are all from minnesota. although we are talking about the constitution which was deliberate a few yards from here minnesota wasn't even a state. talk about how you came to write the book together and what the audience is? >> sure. i will go ahead and start, after the conference, law professors and college professors get together and have a dinner and about the second of all of wine and argument broke out between the college professors and law professors about when students, totaling misshapen ideas about the constitution. law professors were blaming the college professors. how do you get these? college professor said it wasn't our fault. the way civics is taught in high school, the me and all that. i spoke up foolishly, somebo