By James C. Capretta
President Obama and his congressional allies want to create the perception that Obamacare is a done deal, and that Republicans need to get over it. But the events of the past week show quite clearly that that’s far from the reality. Since its passage, Obamacare has rested on shaky ground, owing to the heavy-handed tactics used to jam it through Congress against the wishes of a majority of the electorate. But now, after the Florida court decision and the vote in the Senate on repeal, Obamacare is more vulnerable than ever — politically, legally, and operationally.