Does Spiritual Weapon occupy a space?

@JeremyECrawford I It came up in recent game, so, does spiritual weapon actually occupy a space? Player argues what it does. #dnd

— Andrew (@Lorindil) April 22, 2016

Spiritual weapon—the spectral weapon created by the spell doesn't occupy its space the way a creature would. #DnD https://t.co/AqG8QxEQTj

— Jeremy Crawford (@JeremyECrawford) April 22, 2016