Which of the following were actions that motivated Radical Republicans to seek the impeachment of President Johnson? choose all that apply.
1. Johnson's interference with Reconstruction policies by vetoing several Reconstruction Acts passed by Congress
2. Johnson's attempts to undermine Republican control of the Reconstruction process by removing Secretary of War Edwin Stanton without Senate approval
3. Johnson's public speeches criticizing Radical Republican leaders in Congress and accusing them of attempting to destroy the office of the presidency
4. Johnson's pardoning of high-ranking Confederates and opposition to punishing former Confederate leaders for their roles in the Civil War.