Democrats would love to keep George W. Bush from reminding us of 9/11. He'd be held accountable for increased defense spending, physical security strictures, and a huge negative impact on our economy without being able to defend himself.
Imagine FDR in 1944. Americans are dying abroad by the thousands, taxes are sky high, various items are rationed, and the government is spending money like mad. Apparently today's Dems think it would have been out of line for him to remind us of Pearl Harbor lest we disrespect the dead and the feelings of the living.
Matthew Continetti describes how the Dems tried to put 9/11 out of bounds here.