It is, of course, an article of wingnut faith that Fannie and Freddie crashed the economy by helping undeserving black and brown people get mortgages (Wall Street didn't have a thing to do with it). So if Obama actually implements such a proposal, it will trigger yet another wave of right-wing outrage:

President Obama has directed a small team of advisers to develop a proposal that would keep the government playing a major role in the nation’s mortgage market, extending a federal loan subsidy for most home buyers, according to people familiar with the matter.

The decision follows the advice of his senior economic and housing advisers, who favor maintaining the government’s role as an insurer of mortgages for most borrowers. The approach could even preserve Fannie Mae and Freddie Mac, the mortgage finance giants owned by the government, although under different names and with significant new constraints, said people knowledgeable about the discussions.

A decision to preserve a major government role would mark a big milestone in the effort to craft a new housing policy from the wreckage of the mortgage meltdown and could mean a larger part for Fannie and Freddie than administration officials had signaled.

In a statement, the White House said it is premature to say that senior officials have agreed on any of the three main options outlined earlier this year in an administration white paper on reforming the housing finance system.

“It is simply false that there has been a decision to move forward with any particular option,” said Matt Vogel, a White House spokesman. “All three options remain under active consideration and we are deepening our analysis around how each would potentially be implemented. No recommendation has been made to the president by his economic advisers.”

But progressive economist Dean Baker hates the idea:

It would be difficult to find an economic rationale for this policy other than subsidizing the financial industry. The government can and does directly subsidize the purchase of homes through the mortgage interest deduction. This can be made more generous and better targeted toward low and moderate income families by capping it and converting it into a tax credit (e.g. all homeowners can deduct 15 percent of the interest paid on mortgages of $300,000 or less from their taxes).

There is no obvious reason to have an additional subsidy through the system of mortgage finance. Analysis by Mark Zandi showed that the subsidy provided by a government guarantee would largely translate into higher home prices. This would leave monthly mortgage payments virtually unaffected. The diversion of capital from elsewhere in the economy would mean slower economic growth and would kill jobs for auto workers, steel workers and other workers in the manufacturing sector.