During one of the worst recessions in United States history, the federal government undertook a series of sweeping changes related to the foreclosure crisis. These changes, in particular to the Federal Home Loan Bank System, have many implications. Mission Expansion in the Federal Home Loan Bank System draws attention to this growing program and argues that the program did not contribute to the foreclosure crisis, also offering a close anaysis of its functions and relationship with congress. Mission Expansion offers an intriguing analysis of a growing, relevant institution for those involved in public policy academically or professionally.