India, July 7 -- Senator Mitch McConnell of Kentucky remains hospitalised more than three weeks after an emergency medical response at his Washington residence, a prolonged absence that has intensified questions over his health and cast a shadow of uncertainty over a tightly divided Senate.

The 84-year-old lawmaker, who is the longest-serving Senate leader in American history, was rushed to an undisclosed area hospital on the morning of June 14. Since then, his aides have guarded information tightly, issuing heavily rationed updates that offer little clinical context. While his office maintained last Thursday that the senator "continues to improve" and is "continuing his recovery," the absolute lack of specific diagnostic data has left b...