The correct answer to this open question is the following.
Although the question does not have any further references or attachments, we can say that the sectional conflict was a combination of an irrepressible conflict with the work of bungling politicians, fanatics, and agitators.
Before the Civil War, there were many incidents, events, and decisions that create more separation in the views of the northerners and southerners. In the North, the idea of abolitionism was supported by most states, while in the South, slavery was an important part of the economy. Indeed, southern states depended on slaves to produce the crops in large plantations. These crops had to be exported to Europe.
The Missouri Compromise or the Kansas-Nebraska Act was the product of different points of view from legislators trying to fix things until the problems too many that made seven states seceded from the Union, and later, the beginning of the Civil War.
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Answer: William Jennings Bryan
Explanation:
William Jennings Bryan was a Nebraska politician who was nominated by his party, the Democratic party, to be their Presidential nominee in 1896 after he gave a rousing speech which today is known as the Cross of Gold speech in support of the bimetal/silver standard.
The standard called for the use of both gold and silver to back the American dollar as opposed to using just gold and was strongly supported by the lower and some middle class. The standard however would have brought high inflation as well as making it harder for the US to trade with other countries.
William Jennings lost the election and the US continued with the gold standard.