That's because letters sent to members of Congress are being delayed due to the shutdown.
Senate postal operations are largely closed, so Grassley and other congressional offices in Washington are not getting postal mail deliveries, Grassley's office said.
“I want Iowans to know their postal mail isn’t being delivered to my Washington office right now,” Grassley said. “The lack of delivery will delay the response they receive. If they need help with an urgent issue, they should call any of my offices in Iowa or Washington or send a message through grassley.senate.gov.”
Grassley’s Iowa offices are receiving postal mail during the partial government shutdown, in contrast to the Washington office, though it is not possible for Grassley to respond to Iowans by postal mail during the shutdown, he said.
Staff is answering the phones for all six Iowa offices and the Washington office, with constituent services specialists taking calls from Iowans who need help with a problem involving a federal agency. Some of Grassley’s staff is furloughed on a rotating basis in accordance with legal obligations but enough staff is working to receive comments from Iowans, help constituents, meet with Iowans visiting the nation’s capital, and help fulfill Grassley’s legislative and oversight duties.