What effect does the conclusion of the text, focused on the attack of Charles Sumner, have on the development of the central ideas of the text?

Inferred you are referring to Charles Sumner former US senator.

It encourages sympathy

Explanation:

Remember, we are told Sumner spent three and a half years recovering from the beating resulting from the attack. Although he initially attacked someone, who's cousin later retaliated with physical attack against Sumner. This story of the attack is in line with the central idea of who is painted as the man- Charles Sumner, a fiece activist who got in anyone's way in making his views heard.

b) the importance and limits of political power.

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation: