That would be like Condi Rice being an Al_Quada spy
Having such a full-blooded Communist as VP wasn't exactly an accident on FDR's part. FDR was so thrilled with Wallace's ideas that Wallace once wrote in his diary that FDR "had assured him that he was a few years ahead of his time, but that his vision for America would "inevitably come."" (Treason, 189)
I am not entirely certain that W would have made this bold pronouncement if Coulter had not done what her book did with regard to Hiss.
Some books bring in an atmosphere of enablement particularly when they go to the top as hers have.