The White House has kept its preparations for the Supreme Court’s decision on President Barack Obama’s health care law close to the vest. Mr. Obama, White House press secretary Jay Carney said Wednesday, the West Wing is merely “waiting for an opinion, a decision, and we’ll assess.” But Mr. Obama has been doing more than sitting back and waiting. The president has three separate speeches prepared in anticipation of the ruling on his signature legislative achievement, a person familiar with them said. One of the speeches addresses a complete overturn of the law, while another is crafted as if the...