"Leno: 'I Was Going to Start Off Tonight With an Obama Joke But I Don't Want to Get Audited by the IRS'" by Noel Sheppard, www.newsbusters.org. May 14, 2013.
"Candidates Push to Election Day; Jokes Not Jabs; Keeping Your Money Safe; Palin Riles up Support Ohio Rally". "CNN Newsroom", www.cnn.com. October 17, 2008.