Turkey’s senior judges are to meet on July 28 to begin the hearings in a bitterly divisive case that could result in the closure of the governing party and see Recep Tayyip Erdogan, the prime minister, given a long ban from party politics.

The 11 judges of the constitutional court, Turkey’s highest legal body, could deliver their verdict within days, diplomats and analysts said on Tuesday after the court announced the date for its deliberations. Some said that there could be a verdict in hours, given the intense public and political gaze under which the judges are operating.