Unfortunately this could not be further from the truth. Harry Hopkins, ( closest aid to Roosevelt ) visited Stalin on more then one occasion at the onset of Barbarossa and doubted Germany's ability to defeat Russia even before the battle of Mosocw. He shared many similiar views with Stalin on Germany and was actually quite fond of him and relayed his information to Roosevelt. For this he was not like by some in the administration as not all shared his view. Roosevelt however did. Roosevelt always considered Stalin someone he could work with and even tame.

This was noth the case with Hitler. Nor am I familiar with any branch of the U.S. Government openly supporting the 3rd Reich and its cause. While there were many sympathizers and even rallies before the war ( due to a high German population ) this was not Govt. endorsed?

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The war against Russia will be such that it cannot be conducted in a knightly fashion. This struggle is one of ideologies and racial differences and will have to be conducted with unprecedented, unmerciful and unrelenting harshness. -Adolf Hitler