A Sound of Thunder was published in 1952. What connections can you make between the description of the politician here and the actual historical events? How did Bradbury help us to make that connection?
While it was published in 1952, A Sound of Thunder is set in the year 2055, over 100 years in the future. But it obviously is influenced by the events of Bradbury's time. The political element of the story seems to be secondary at first glance, but it will later be seen as central to the story. With the memory of Nazi Germany still fresh, and the rise of Communism looming in the future, there is no doubt that these events influenced the story.
As Scott Eckels begins his preparations for his time travel adventure, he chats with the clerk about yesterday's election. He says that if his candidate, the progressive named Keith, had not won it would have been bad. If Deutscher, the dictatorial opponent, had been elected he says that he would have been there just to flee to a different time.
After returning from the time trip and his panic fueled blunder that would have extreme consequences, he notices changes as soon as he exits the time machine. The spelling of the signs is different, and conditions have changed everywhere he looks. When he asks a worker who won the election and is told that Deutscher had, the truth comes crashing in. Then we see what "A Sound of Thunder" really is.
By simply the spelling of the candidates names and subtle comments made he leads us to these conclusions.