Did Roosevelt knowingly allow Pearl Harbor?

Did Roosevelt and the senior command know the Japanese attack was coming and let Pearl Harbor happen?

No; the failure is attributed to unverified assumptions and bureaucratic avoidance in intelligence distribution, not a deliberate plan to permit the attack.

Roosevelt and senior commanders may have sensed danger, but the claim that they knowingly permitted the attack is rejected. Washington sent generic war warnings without the intercept-derived context that would tell Kimmel and Short where the danger lay. Some commanders, including Douglas MacArthur, appear to have received more information, yet no one verified the Hawaii distribution. Officials may also have been less eager to give Kimmel the detailed access that had enabled Richardson to challenge policy. This remains a tentative explanation for bureaucratic avoidance, not evidence of a plan to sacrifice Pearl Harbor.