The Institute for Humane Studies Learn Liberty project continues to offer clear-headed analysis in video form. The latest effort features Ben Powell of Suffolk University explaining the concept of concentrated benefits and diffuse costs in the context of ongoing budget fights.
Cato recently produced two short videos on complementary aspects of the budget fights. For a more detailed treatment of many aspects of public choice, get your free (cheap!) copy of Cato's excellent book, Government Failure: A Primer in Public Choice.