In his speech, "War Message to Congress", President Woodrow Wilson uses the word "we" as a way of including the American People in their message to the Congress, thus exercising a double role in his speech, on the one hand as a genuine representative of the people, and on the other, as a member of the same.
The word "we", included in a speech given by a leader, tends to include in the message the members of the group over which the leader exerts influence. In this case, Wilson speaks for the people, saying that it has no problem or resentment against the German people.
