I think what it means is that the President decides what he thinks are official duties, and if anybody questions that they will have to take it to court. And t

I think what it means is that the President decides what he thinks are official duties, and if anybody questions that they will have to take it to court. And that there are now much fewer restrictions on Presidential power than there were yesterday, nothing like the narrow band experienced since the time of Geo Washington. Any restriction is now in question if it ties the Presidents' hands as much as in the past. Unprecedented extreme actions are moved from black & white to a grey area. Whatever might be brought to court is made more difficult to decide, and more likely to end up in the highest courts. Decided by the same unelected officials who ceded more of the citizens' balance of power to an Executive who is already difficult to hold accountable, while gaining a greater portion of power for Judiciary also, as collateral damage.