Team B concluded that the NIE on the Soviet Union, compiled and produced annually by the CIA, chronically underestimated Soviet military power and misinterpreted Soviet strategic intentions. Its findings were leaked to the press shortly after Jimmy Carter's 1976 presidential election win in an attempt to appeal to staunch anticommunists in both parties and also not to appear partisan. The Team B reports became the intellectual foundation for the idea of "the window of vulnerability" and of the massive arms buildup that began toward the end of the Carter administration and accelerated under President Ronald Reagan.