Question

How do McCarthy’s references to Abraham Lincoln at the beginning and end of his speech support his argument?

Answer 1

McCarthy is trying to win the audience to his viewpoint straightaway by inducing  one of America's most loved presidents of all times.Once you have drawn the attention of your audience,they are going to listen to you to the end of your speech hopefully.

As we celebrate the birth of this man who with his whole heart and soul hated war, I would like to be able to speak of peace in our time, of war being outlawed, and of world-wide disarmament.

And because that day was the birthday of Abraham Lincoln,it was very apt to mention Abraham's name as he always championed for disarmament and no war policies and wanted peace and prosperity for all.