Answer:
White government shook with the control of Radical Republicans in 1866.
Step-by-step explanation:
The Radical Republicans supported the idea that blacks should be given right to vote. They had same political rights as the whites. During the Radical Reconstruction in 1867, blacks got power to voice their opinion in the government and they also won the election to "Southern State Legislatures" and even to the "Congress" in U.S. They gained support from the black as they were given right to vote. Also, former slaves freed by them supported Radical Republicans. President Johnson vetoed their bill of Reconstruction as he was not happy with their growing power.