WASHINGTON -- President Barack Obama asked for a national debate on health care, and he got his wish. The problem for the Democrats, and consequently for the president, is the national debate is still going on.Republicans surely take comfort in polls that show continuing public skepticism if not hostility toward the health care law. Overall, Americans disapprove of the 2010 act by a 54-to-43 margin, a range that in the Gallup poll has remained generally consistent since last fall.But the Democrats have their talking points on Obamacare ready.