Decay, deconstruction of cities, poor management, inflation, too big to control, political corruption, bad economy, unemployment, power struggles, invaders. Hope that helps.
Answer: I can't help that much because of the fact I haven't learned what you learned but here is a short Summary.
The Civil Rights was a act to help against Racial Equality. The Congress signed this on 1964. This falls under the 14th admendent. This makes sure that no matter what race or sex you will be treated the same as anyone else.
The candidate must win the majority of the electoral votes to become the president. Electoral votes are given out by the Electoral College, a group with the same amount of people as in the House of Representatives.