Answer:
Presidential courage
Step-by-step explanation:
Michael Bechloss is widely known as a historian and author. In his book titled "Presidential Courage: Brave Leaders and How They Changed America, 1789-1989"
He concluded that what makes a good speech is a Presidential courage; the ability of a president to say things that may jeopardize his administration and long-term reputation combined with the insight and tact to present those things in such a manner that the people (Americans) will later come to appreciate.