Yet another deadline in a congressional investigation into wrongdoing at the U.S. Department of Housing and Urban Development (HUD) has passed without movement.  HUD’s failure to provide all documents requested by Congress is disappointing because it stalls an ongoing investigation of improper salary payments to HUD officials who obstructed an inquiry into improprieties in HUD’s handling of housing fraud lawsuits against the city of St. Paul, Minn.  Action on the part of Secretary Carson on this front is a key test of President Trump’s promise to restore good government. Fortunately, HUD’s scheduling of a long overdue briefing to Congress today may represent progress on this score.