Analysis of information sources in references of the Wikipedia article "Truman Committee" in English language version.
Over seven years (1941–1948) the committee heard from 1,798 witnesses during 432 public hearings. It published nearly two thousand pages of documents and saved perhaps $15 billion and thousands of lives by exposing faulty airplane and munitions production.
Having been reelected in 1940 without FDR's endorsement (and having supported favorite-son candidate Missouri Senator Bennett Clark for the Democratic presidential nomination), Truman returned to the Senate with a reputation as an anti-Roosevelt Democrat.