A.H.A. as in American Heart Association?
Along with the OAH, they're doing a tremendous job of rewriting history.
Fortunately, no one outside of their little revisionist, obscure, cloistered, Ivory Tower clique pays much attention to what they have to either say or write about the field of American history.
However, like the ACLU, ADA, and the supposedly impartial ABA, their group has much more influence on public policy than their numbers would initially suggest to the lay observer.