Sensing the best chance yet to end President Tayyip Erdogan's two-decade rule in Turkey, his opponents are mobilising to make sure every ballot is counted in a May election and to guard against any tampering in what is expected to be a tight vote.
With the stakes so high, concerns about potential irregularities have been heightened by upheaval wrought by February's devastating earthquakes in the southeast, where some 50,000 people were killed and millions made homeless.
