It's an excellent question with no perfect answer but I'll offer yes, pick a fight and start dropping bombs. We still had the production facilities to continue the war, far more so than did the Soviets. Certainly there was no shortage of opinions on the dangers the Soviets posed.
But as I mentioned previously, it probably wasn't politically possible. American's were tired of war, had sacrificed a lot, were glad it was over and, at the time, there was a general feeling that since we had the bomb we could keep the peace.
Of course my comments benefit from perfect 20/20 hindsight, but then all those scholars get to use that as well and avoiding the resulting commie encroachment both in the USSR as well as in their satellite states the world would be a far, far different place. In fact to the point where I can't image.
Sure...kill millions of Russian civilians in a strategy that wasn't even guaranteed to work? Americans may have accepted the bombs falling on Hiroshima and Nagasaki and the earlier firebombing of Tokyo, but the Japanese had attacked us, whereas the Russians had been our allies. Something like 100,000 Russian troops died capturing Berlin. As late as his famous Iron Curtain speech in 1946, Churchill still had some kind words for Stalin for his role in the war. I just can't see an American President resorting to mass slaughter on that scale for a foreign policy objective.