In real life, Wallace, a staunch progressive who opposed the idea of a Cold War was the VP from 1941 until 1944, when an internal party coup replaced him with Truman. Personally, FDR liked Wallace better, and its very possible that at some point (either Truman failing to get FDR's support, or getting the support of FDR but not the convention) Truman's supporters could fail to put him as FDR's running mate.
What effect do you think this would have on post-war US-USSR relations, popular perception of the USSR, and the 1948 election?
What effect do you think this would have on post-war US-USSR relations, popular perception of the USSR, and the 1948 election?