He thought that the act should not exist because it restricts the power of unions and the people's right to unionize. He went as far as to call it a "slave-labor bill", when he vetoed it in 1947. He also argued that it was against building a democratic society and that the bill was unconstitutional because it limited free speech.
Truman states that labor unions over the years have increased the living standards of American workers to the point of being the highest in the world. The bill, he claims, would weaken the ability of unions to maintain those high standards for US workers. He also states that employers would regret the bill because it is “loaded with provisions that would plague and hamper management.” In addition, he states that the bill would have a negative effect by taking labor disputes out of the workplace and into the courtroom.
