When it comes to Fannie Mae and Freddie Mac, there is probably no critic that tracks the GSEs and their activities more diligently than Peter Wallison, a resident fellow at the American Enterprise Institute and a former general counsel at the Treasury Department. In a new article in The International Economy, Wallison contends Fannie’s and Freddie’s political muscle in Congress is weakening. And he points to the series of “concessions” the GSEs have been