The 14th amendment forbid all states from restricting the basic rights of citizens.
The Modern Era spanned at this time. Hope this helps.
At the turn of the twentieth century, the majority of the working poor lived in the inner-city tenements since most of the factories that they are working at are located in the cities. These working poor had unsafe living and working conditions during this time.
The answer is checks and balances.
Answer:
The reason was that the tensions, and the subsequent victory of the Union Side in the Civil War allowed the government of Abraham Lincoln to end slavery in the United States.
In other words, he had enough political capital because he had the backing of both union politicians and the people due to the need of leading the war against the Confederate Side in the Civil War.