As the Supreme Court prepares to hear arguments on Wednesday on whether to invalidate a crucial part of the president's health care law, Obama administration officials say they are doing nothing to prepare for what could be a catastrophic defeat. Administration officials insist that any steps they could take to prepare for the potential crisis would be politically unworkable and ineffective, and that pursuing them would wrongly signal to the justices that reasonable solutions existed. The do-nothing strategy is meant to reinforce for the court what White House officials believe: that a loss in the health care case would be unavoidably disastrous for millions of people.