While Memorial Day is traditionally a time for Americans to reflect on the sacrifices made by fallen service members, Donald Trump took a different approach — using part of the solemn holiday to voice his personal complaints. A sharp attack President Donald Trump is facing backlash for the way he chose to observe Memorial Day — by launching into a fiery, all-caps tirade on social media. In his post, he took aim at the Biden administration, labeling them “scum,” criticized…