1. andrew johnson was chosen to be vice president because it was hoped that he refused to impeach lincoln was from lincoln’s home state opposed the south’s "black codes" would attract pro-union democrats
2. johnson was impeached after he pardoned eleven former confederates violated the tenure of office act criticized radical republicans supported the "black codes"
3. what was the outcome of johnson’s impeachment? not guilty. he resigned. guilty, and forced to resign. guilty, but not removed from office