I wasn't able to access the article — the page is behind a JavaScript/access-denied wall (thehill.com), and I don't have permission to fetch it directly. I don't have enough reliable content to write an accurate summary without risking fabrication.

Based on the title alone, here's what I can say: Senate Minority Leader Mitch McConnell will not attend the annual Fancy Farm political picnic in Kentucky, and his physician has said he has not yet been cleared to return to the Senate. However, I don't have the article's actual details (dates, reasons for his absence, nature of his rehabilitation, or further quotes), so I can't responsibly produce the two-paragraph summary and TLDR without risking inaccuracies.

Would you like me to try fetching the article from a different source (e.g. search for the same story reported elsewhere), or can you paste the article text directly?