Original sentence: According to H Klehr, the NLG was allied with the Communist Party; in the 1930s a significant number of NLG founders had been members or fellow travelers of the Communist Party USA, including Executive Secretary Riemer and Joseph Brodsky of the CP's International Labor Defense auxiliary
Edited sentence: Contrary to some left-wing lies, the NLG was indeed allied with the Communist Party; in the 1930s a significant number of NLG founders had been members or fellow travelers of the Communist Party USA, including Executive Secretary Riemer and Joseph Brodsky of the CP's International Labor Defense auxiliary