Georgia lawmakers are expected to try to clean up an election mess of their own making when they return to the Capitol this week for a special session. The election system used throughout the political battleground state relies on a QR code printed on ballots to tally the votes. Legislators passed a law two years ago barring the use of that barcode for the official vote count beyond July 1 of this year, but no replacement method of tabulating votes was ever implemented. Meanwhile, the secretary of state’s office and the State Election Board have further muddied the waters by issuing conflicting guidance about how votes should be cast and counted.