Crucial to understanding federalism in modern day America is the concept of mobility, or 'the ability to vote with your feet.' If you don't support the death penalty and citizens packing a pistol - don't come to Texas. If you don't like medicinal marijuana and gay marriage, don't move to California.
Fed Up!: Our Fight to Save America from Washington (ed. Little, Brown, 2010) - ISBN: 9780316183758