“The other night in a debate between Senate Majority Leader Mitch McConnell (R., Ky.) and his challenger, Alison Lundergan Grimes (D.), McConnell argued that it was “fine” to keep Kentucky’s insurance exchange, called Kynect, while repealing Obamacare “root and branch.” This has led the lefty blogosphere to explode in outrage. But Sen. McConnell is right. Repealing Obamacare would leave many states’ exchanges in place. But exchanges like Kynect, under a more market-oriented system, would be meaningfully different than those under Obamacare. And that’s a good thing.”