'There are reasons why such a solution is less than ideal. There ought to be some concern about executive overreach; the very idea of the president deciding which laws are and are not constitutional has disturbing ramifications. And to the extent that the goal of the move is to prevent market panic, it remains an open question as to whether it would succeed. But market panic will surely come with the failure to reach a deal altogether. The consequences of default are simply too severe — and too long-lasting — to take this option off the table. It may not be ideal as an elective choice, but as an option of last resort, it is a necessity.'