"The main way in which the United States developed politically during this time was that the Republican Party formed as an anti-slavery platform, while economically the nation flourished due to the create of railroads."
<h2>Abolition of slavery and railroads was built.</h2>
Explanation:
The Republican Party determined that slavery wasn't part of their core values. So, they created an anti-slavery party, which offered a lot in politics field to slavery abolition.
Also, during those years, railroads happened, which meant a huge advance for economy. Allow the country to industrialised.
The 1958 case NAACP v. Alabama struck down the requirement that organizations provide membership lists to the government on the basis of freedom of association. The court reasoned that in this case, requiring the NAACP to disclose their membership to the state of Alabama violated the 14th Amendment.