what did the impeachment of andrew johnson
A+E Networks. The U.S. House of Representatives votes 11 articles of impeachment against President Andrew Johnson, nine of which cite Johnsonâs removal of Secretary of War Edwin M. Stanton, a violation of the Tenure of Office Act. The House vote made President Johnson the first president to be impeached in U.S. history. At the outbreak of the Civil War in 1861, Andrew Johnson, a senator from Tennessee, was the only U.S. senator from a seceding state who remained loyal to the Union. In 1862, President Abraham Lincoln appointed him military governor of Tennessee, and in 1864 he was elected vice president of the United States.