I was actually commenting on that article, which I didn't really care much for. In the end, I guess it depends on what you quantify as left and right. Honestly, I think that terminology is outdated and not useful. If Obama left? Depends on who you ask. In any case, he has shown as much regard for the Constitution as he does for the rolls of Presidential toilet paper.
Both parties ignore the Constitution when it is inconvenient, and both invoke it when it is politically expedient to do so.