This was the correct answer. His voice has a pleasing timbre and he has good awareness of his body as he speaks. He is comfortable speaking, and exudes confidence.
He could read the Chicago Phone Book and it would sound good.
You are right. I saw a video of him singing “If I only had McCain”, sung to the tune of the Wizard of Oz’s “If I only had a brain” and his pitch was perfect. He has a great voice.