[CornFed]

Indeed, for each of the listed funerals, there are specific circumstances that presumably dictate whether or not the President can/should attend.  This president, however, is seen by many on the right as extremely divisive and regardless of the circumstances it is unfortunate he will not be attending, just to avoid the inevitable arm-waving that partisans on both sides do in these situations.

[CornFed]

Indeed, for each of the listed funerals, there are specific circumstances that presumably dictate whether or not the President can/should attend.  This president, however, is seen by many on the right as extremely divisive and regardless of the circumstances it is unfortunate he will not be attending, just to avoid the inevitable arm-waving that partisans on both sides do in these situations.