The correct answer to this open question is the following.
US President Ronald Reagan was a great orator. He knew how the get audiences involved in his speeches and had a knack to using rhetoric resources to convey his messages.
That was the case of the important “Space Shuttle "Challenger' Tragedy Address," delivered on January 28, 1986. His persuasive skill can be shown in paragraphs like this: "The Challenger crew was pulling us into the future, and we continue to follow them."
Reagan appealed to Pathos, the rhetorical approach designed to persuade the audience through the emotion.