Brexit negotiators have one more thing to solve within days -The XX factor

The British government asked for the possibility of that being extended in case the final trade deal isn't ready in time

As Prime Minister Theresa May is gripped by political turmoil in the U.K., Brexit negotiators have some unfinished business in Brussels.

Curiously, the 107,000-word draft divorce treaty had one gap left in it when it was published this week. The maximum extension of the U.K.’s post-Brexit transition period appeared in the text as “up to 31 December 20XX.”

Officials on both sides say they have only until the planned summit of EU leaders on Nov. 25 to replace the blanks with a specific year.

The issue is divisive in the U.K. because pro-Brexit lawmakers consider the transition period leaves Britain a “vassal state.”