There may be some belt-tightening at the statehouse. State officials may have to trim as much as 140-million dollars from the present year’s state budget due to a faltering economy. Tax revenues started slipping in early December. With just a little over four months left in the budget year, agencies would feel the pinch.Governor Vilsack says he’s waiting for a three-member panel of state tax experts to meet in March to draw a clearer picture of the state’s budget woes.