How did the federal government change after the Civil War?

After the Civil War with the victory of the Union, it made the federal government stronger. It was possible to pass the Fourteenth Amendment which limits states power and protects the rights of citizens. With this, the federal government took a central place in the defense of individual rights.

Explanation:

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.

to protest slavery i would think it would be a