ViewpointsOpinionWhy Do Politicians Lie?SavePrintHigh school students demonstrate outside the United States District Court in Newark, N.J. on May 1, 2015. Kena Betancur/Getty ImagesRoger Koopman2/7/2022|Updated: 2/7/2022CommentaryWe’ve all heard the joke: “How do you know when a politician is lying?”Share this articleLeave a commentRoger KoopmanAuthorRoger Koopman is a former small businessman, two-term state legislator and two-term public service commissioner. He lives in Bozeman, Mont.Author’s Selected ArticlesMontana House Affair Underscores Breakdown in Manners and RespectMay 15, 2023When America Finds Her Heart, America Will Find Her SoulSep 22, 2022A Free Ukraine Would Not Have Been AttackedMar 13, 2022Related Topicspoliticians