In the event that Congress can’t come to an agreement on fixing Fannie Mae and Freddie Mac, Treasury Secretary Steve Mnuchin said the department can take matters into its own hands. But he would rather leave it up to the lawmakers. “There are certain administrative options that we have,” he said, adding, “These entities are very complicated, and I would just say my strong preference would be to work with Congress on a bipartisan basis to reach a long-term solution.” Mnuchin reaffirmed his commitment to reforming the housing-finance system and support for the 30-year fixed-rate mortgage while testifying at a Committee on Banking, Housing, and Urban Affairs hearing Tuesday morning.