Senate Majority Leader Mitch McConnell says he plans to unveil a revised health care bill on Thursday with a vote on moving ahead on the measure next week. Senate GOP leaders are struggling to come up with legislation to erase much of Democrat Barack Obama's health care law, but Republicans remain divided over the bill. McConnell laid out the schedule shortly after announcing that the Senate will delay its recess two weeks to work on legislation, including a defense bill, and nominations. A long-time Senate Republican says he's "very pessimistic" that GOP senators will settle their differences and push a health care bill through the chamber. A maverick Republican senator is warning party leaders against striking a compromise with Democrats should the GOP health care bill collapse. Paul spoke Tuesday on the Fox News Channel as top Republicans hope to stage a climactic vote next week on their bill erasing much of President Barack Obama's health care law. [...] internal rifts over issues like coverage requirements and Medicaid cuts leave the timing and even the measure's fate unclear.