Glenn took to the chalkboard this week to break down the structure of the Declaration of Independence and explain how it was written in such a timeless way that it will continue to shape America's political future for generations to come.
"The Declaration of Independence is something you learn at school, and you're taught that it's an old dusty document," Glenn said. "But it's not. It's brilliant and it's good for now and a hundred years from now."
Watch the video clip above.