The draft of the housing-finance reform proposal from Sen. Bob Corker, R-TN, appears to have morphed out of both the Mortgage Bankers Association plan and a proposal put forth by Michael Bright and Ed DeMarco. A recent analysis by the Structured Finance Industry Group compared the Senate discussion draft with the other two proposals. SFIG noted that all three proposals advocate an explicit mortgage-backed securities guarantee, preserving the to-be-announced market and the 30-year fixed-rate mortgage. But when it comes to the cash window, the Senate draft deviates from the MBA and Bright/DeMarco plans, which suggested maintaining the cash window operations through the GSEs. Corker’s draft would maintain the cash window through the guarantors