A monumental opportunity has presented itself as Julian Castro, former mayor of San Antonio, takes over as the new Secretary of Housing and Urban Development and Congress looks ahead on the critical issue of housing finance reform. After years of tepid growth and false starts, leaders in Washington have the opportunity to give housing finance reform a shot in the arm. This reform is readily achievable even in today’s log-jammed Congress, as there is bipartisan consensus that the most prudent reforms would accomplish three essential goals: appropriately and strategically wind down Fannie Mae and Freddie Mac in a way...