Because it makes it sound like he's saying, "Hey, look at me. I'm a white guy. You don't have to worry about where I was born..."
And after these 4 years, my tagline says it best.
His comment had nothing to do with race. Most black people in America’s ancestors have been here longer than most white people’s ancestors.
“Hey, look at me. I’m a white guy.....To me, he said “Hey look at me. I’m a politician in a national forum and I’ll show you my birth certificate if you ask for it.”