Sen. Ron Johnson, a tea party Republican from Wisconsin, knows that the politics of Obamacare are changing. “It’s no longer just a piece of paper that you can repeal and it goes away,” he told the New York Times. “There’s something there. We have to recognize that reality. We have to deal with the people that are currently covered under Obamacare.” Jan. 1 isn't likely to be a glitch-free day for Obamacare. There will be people who try to use their insurance and find they can't, or it's not the plan they meant to buy, or it's not a plan...