10′ Reach weapon Attack of Opportunity

@JeremyECrawford Recent sage advice – Reach weapon's AoO only applies at 10'. Can someone with a halberd normal attack an adjacent (5') foe?

— Jordan Mohr (@Kenshin13850) July 21, 2015

"A melee attack allows you to attack a foe within your reach" (PH, 195). That rule does apply to reach weapons. https://t.co/56iuryRsJH

— Jeremy Crawford (@JeremyECrawford) July 22, 2015