text:  From WNYC in New York, this is On The Media. I'm Brooke Gladstone. And I'm Michael Loewinger. Go to a rally for Donald Trump these days, and there are a couple songs you're almost guaranteed to hear, like Toby Keith's Courtesy of the Red, White, and Blue, and this one, Trump's walkout song, God Bless the USA by Lee Greenwood. God bless the USA.