WASHINGTON -- Obamacare is under attack. Its website is glitchy, its prices are uneven, and insurance policies that don't meet its standards are being withdrawn. But President Barack Obama is sticking with it, scolding its Republican critics, and betting that in the long run, he'll win. He may be right.Obama's bet, on a message level, is that the public likes the idea of the Affordable Care Act, even if they're unhappy with its implementation or some of its features. He's for something that addresses our health care needs. Republicans, lacking a plausible alternative, offer nothing but obstruction. The law is being implemented. The GOP can't fight it without, in effect, rolling back coverage and benefits. Changing the law's details is a popular position. Repealing it isn't.