VIDEO : David Letterman on Trump: ?If I had a show, I would have gone right after him?

David Letterman called Republican nominee Donald Trump ?a person to be shunned? because of his comments about Mexican immigrants and a disabled reporter.
And if Letterman were still on the air, he wouldn?t go easy on him, he told The New York Times?s David Itzkoff in an interview published Friday.
?If I had a show, I would have gone right after him,? said Letterman. He took particular issue with Trump?s mockery of New York Times reporter Serge Kovaleski, who is physically disabled.