Final answer:
The Radical Republicans created a joint committee to oversee Reconstruction and pushed for the complete reconstruction of the South.
Step-by-step explanation:
The Radical Republicans did not like the approach of Congressional Reconstruction, so they created a joint committee of representatives and senators to oversee Reconstruction. They gained control of the House in the 1866 congressional elections and pushed for the dismantling of the old southern order and complete reconstruction of the South. They believed that only Congress had the right to set the terms for readmission of the southern states to the Union.