The words President Carter uses in this excerpt contribute to the power of his speech in the following way:
B. President Carter addresses the American nation with a great sense of urgency, and by doing so, he commands and demands the audience's attention.
When he mentions the <em>threat to American democracy</em>, he is transmitting a sense of emergency and he is urging the audience to listen. Moreover, he is directly addressing the American nation by stating <em>I want to speak to you...</em>
Expectation because people where getting excited for it but then it didn't happen
No, it doesn't has to have an external conflict, internal means something that the character is dealing with within his self so the story can be based only on that. -hope this helps