YouTube/CBSWhen President-elect Donald Trump told the Times of London that his first day as president wouldn't be until Monday after being sworn in as president on Friday, you just knew it would be the latest material for the late-night shows to hammer Trump. And that's exactly what Stephen Colbert did to open "The Late Show" on Tuesday. Stating that his first order of business as president will be creating "strong borders" around the US, Trump added while speaking to the Times of London: "Day one — which I will consider to be Monday as opposed to Friday or Saturday.