
You can hear his handlers telling him the people who like him like him because they think he's strong. So he's gotta act strong. And strong means...LOUD AND ANGRY.
And that's exactly how it's gonna be spun by the wingnut media. "He looked and sounded strong and resolute!" Bullshit. He's just yelling, and he's saying nothing.
Of course, if someone's playing Black Sabbath in his earpiece, that would explain it.