Rep. Jeb Hensarling this week provided a detailed blueprint for his vision of the MBS market that would replace Fannie Mae and Freddie Mac with a voluntary securitization platform that would be prohibited from providing any guaranties, government-backed or otherwise. The Texas Republican’s proposed National Mortgage Market Utility would be built from the work already underway at the government-sponsored enterprises to design a common securitization platform. Like the existing CSP project, which was assigned to the GSEs by their regulator, the NMMU would develop standards for servicing, pooling and securitizing home mortgages, as well as a “publicly accessible securitization outlet.” Hensarling’s proposed utility, part of his Protecting American Taxpayers and Homeowners Act, goes...