The answer is A.
Federal Laws that are against the constitution are not valid. Judges determine which laws are unconstitutional in the process of Judicial Review.
Answer:
Hiya there!
Explanation:
In early 1866, Congressional Republicans, appalled by mass killing of ex-slaves and adoption of restrictive black codes, seized control of Reconstruction from President Johnson. ... The 14th Amendment also reduced representation in Congress of any southern state that deprived African Americans of the vote.
<em><u>Hope this helped!</u></em> :D