In 1941, Senator (and future President) Harry Truman famously said, "If we see that Germany is winning the war, we ought to help Russia; and if that Russia is winning, we ought to help Germany." General Patton wanted to re-arm defeated German troops and join them in sending the Red Army back to Russia at the very end of the original war.
Such a result might have been achieved by scaling back, or even "turning off" the flow of "Lend Lease" aid to the Soviet Union after it started winning the war at the battle of Kursk. The enormous Soviet advances of 1943-44 were greatly assisted by American trucks, fuel, and other supplies. Without this aid, it might have taken the Soviet Union until mid-1945, instead of mid-1944, to regain her pre-war frontier. Meaning that the Americans could have been the first to arrive in Berlin, and perhaps Warsaw or even points further east.
Did anyone in the U.S. military or government advocate such a "Machiavellian" policy? Were there people who counterargued that keeping up the flow of Lend Lease aid would save American lives?