Passed by sharply divided Congress, a sharply divided Supreme Court upholds the health care reform law in a sharply divided, convoluted way. The individual mandate — forcing people to buy health insurance — is unconstitutional. But making people pay a tax if they don’t buy insurance is a constitutional exercise of Congress’ power to tax. So in practice, the mandate stands. So the Supreme Court rules against Obama’s claim that the mandate is not a tax, but because Obama’s wrong, the law stands.