President Truman vetoed the bill because he felt that it was unfair to work people who belonged to, or wanted to belong to, labor unions.
Explanation:
The Taft-Hartley Act became law despite President Harry Truman's (1945–1953) veto. jointly called the Labor-Management Relations Act, it was passed by the Congress in 1947 and it also established tips to correct unions' unfair labor practices.
That Roosvelt was advocating for economic pressure but against war. The speech had the opposition of the media at the beginning but then it gained some support.
