On December 18, 2019, President Trump made history as only the 3rd president to be impeached. (No, President Nixon was not.) “What does the US Constitution say about impeachment? Which chamber impeaches? What happens in the Senate?” Questions like these lead to the unique role and powers of the president - and a comparison with the German Bundeskanzler. Our Lernarchiv "The U.S. President" supports your class.