Really? I read that he didn't let invite them because he was the manifestation on Satan and therefore not very kind at all
Stalin was a silly fellow, he had wild exclusive parties and the Trotskyites were quite simply jealous and in return out of kindness, Stalin chose to allow the Trotskyists into their parties, however Stalin's breaking of the Ice with Trotsky didn't go as planned and the Trotskyists were forever excluded.
