Fannie Mae and Freddie Mac will start making payments that could total hundreds of millions of dollars annually into a fund for affordable housing. Under the new policy announced by Federal Housing Finance Agency Director Melvin L. Watt, the GSEs will set aside a portion of their revenue for the National Affordable Housing Trust Fund. The fund is the only source of U.S. housing money earmarked for the lowest-income families and has been empty since Congress created it in 2008. Watt’s predecessors said the precarious financial condition of the companies prevented them from making payments. Now, “[c]ircumstances have changed” and the suspension of payments into the fund “is no longer justified,” Watt said.