The idea that delegates be chosen to speak on behalf of a certain class or territory: choose the word best described by the definition.
popular sovereignty
authoritarianism
representation
cabinet

The answer to the question above is Representation. This is the act of speaking or acting on behalf of the state that is being represented. There might be a single representative or in this case we have a delegate composed of individuals that communicates the idea of a certain class. 

In my honest opinion , i’d say franklin d roosevelt was a president that impacted our nation , i say this because fdr is voted among top three best us presidents and he was the longest serving president by 3 terms , usually presidents only supposed to have two terms increments of 4 years , equivalent to 8 years total before election time. and he established the fdic , through the 1933 banking act and he established the us , social security system , during his presidency, and established a national minimum wage , through the fair labor standards act , fdr led the allied coalition to victory in wwii and he played a major role in the creation of the united nations.

Where people were very broke no jobs were available and everyone was struggling