I have no idea who you are learning history from but this country, at no time, ever gave any aid to the Nazi regime. We were, however, pouring millions of tons of raw materials and other aid into Britain from the onset of WWII in Europe, September 1939 until the end in May 1945.
Hitler never received any sort of aid from the United States Government at any point in time. Now, if some pro-Nazi group that was formed in the 30's supplied any aid I have no idea, although these groups, what little there were, quickly went to curb when Hitler started WWII and it's former members were quick to distance themselves from it at that point so I can't see them providing much of anything to them from 1939 to the end in 1945.
As for American corporations, sure, there were many active companies in Europe before the outbreak of WWII and some of those were even used by the Nazi's during the war for they're own purposes, such as the Ford and GM plants in Cologne (which were decimated during the fire bombing), but, one must realize that these plants were not run by either Ford or GM during the war. In fact, these plants were taken over by the Nazi regime for these purposes. These plants produced a tremendous amount of the regimes war supplies, like tanks and so forth, but it they were not under the control or administration of either company during the war. Therefore, we never contributed to the war. Heck, at that time the U.S. Army intelligence was watching what Ford was doing over there. Our government never partook, nor condoned, any kind of aid to these criminals.
Let them eat cake.
