Answer and Explanation:
The author built the article showing the strategies that Obama used in his speech to reduce his disadvantages during the presidential campaign. The speech's author shows that in addition to being a good orator, Obama was also a great writer who knew words and rhetorical and literary traits very well, being able to efficiently use allusions, resonance, duality and a strong content of ethos and pathos. .
Given this explanation and after listening to Obama's speech, we can agree with the author because it is evident that Obama's speech was very well thought out and planned as a success point in his candidacy.