Since 1862, no Senator has been expelled, though there were multiple efforts over the course of time but never were they successful. In 1797 a Senator was expelled for the charges of treason and then in 1861-62 fourteen more met the same fate for joining and helping <span>Confederacy in the Civil War. So its been about 155 years :)</span>
Explanation: Enumerated Powers of the U.S. Constitution Instead of a totally unified central government with all legislative power, the U.S. Constitution created a federalist system with power divided between the national government and the states.
