Sen. Mitch McConnell’s (R‑KY) extended hospitalization is drawing new attention to an unresolved legal question in Kentucky that could trigger a high-stakes court battle if the longtime Republican senator were unable to complete the remainder of his term.The question carries added urgency because Kentucky’s revised Senate vacancy law creates a narrow window for holding a special election before this fall’s already scheduled Senate race, raising the stakes if the former Republican Senate majority leader’s seat were to become vacant in the coming weeks.McConnell, 84, has remained hospitalized since June 14 following what his office has described only as a medical emergency. While Senate leaders and his staff have insisted he is recovering, coupled with Senate Majority Leader John Thune (R‑SD) and others …