It was called isolationism :D
The Calhoun doctrine shows that Calhoun wanted states to have the right to nullify national laws
Answer:
Confederate leaders could not hold public office
Explanation:
Radical Republicans thought that Lincoln’s plan for Reconstruction was not severe enough because, from their belief, the South was blameworthy of causing the war and justified to be punished as such.
Radical Republicans believed to regulate the process of Reconstruction, reconstruct Southern society, dismiss the planter aristocracy, land reforms, improve the industry, and guarantee civil rights for former slaves.