From Wikipedia:
Memorial Day formerly was observed on May 30. The Veterans of Foreign Wars (VFW) and Sons of Union Veterans of the Civil War (SUVCW) advocate returning to this fixed date,... The VFW stated in a 2002 Memorial Day Address:
“Changing the date merely to create three-day weekends has undermined the very meaning of the day. No doubt, this has contributed a lot to the general public's nonchalant observance of Memorial Day.[3]”
Since 1987, Hawaii's Senator Daniel Inouye, a World War II veteran, has repeatedly introduced measures to return Memorial Day to its traditional date.