How does Squealer's use of rhetorical language aid in advancing the plot and shaping and refining the theme in Chapter 8 of Animal Farm?

Squealer is a propagandist.... rewording, rephrasing, and double meaning are his specialty. In using this form of control, he is better able to manipulate the animals to believe him, and to believe that the changes in rules, ect., are in the best interests of the animals themselves. His manipulation of numbers and statistics, in addition to the ignorance of the other animals affords the pigs the power to support the totalitarian regime without reisistance.