With some federal agencies effectively downsized by the government shutdown, Ginnie Mae continues to guarantee MBS, but it’s unclear how long it can go on with limited staff and commitment authority. Under the shutdown contingency plan drafted by the Department of Housing and Urban Development, Ginnie has limited its operations to key functions fulfill its obligations to issuers and investors. The agency said MBS guaranties would be honored during the shutdown. While the rest of the workforce is on furlough, some 44 essential salaried employees will continue...