Answer: According to the preamble, the power of government comes from <u><em>The people </em></u>
The Industrial Revolution transformed economies that had been based on agriculture and handicrafts into economies based on large-scale industry, mechanized manufacturing, and the factory system. New machines, new power sources, and new ways of organizing work made existing industries more productive and efficient
The Speaker of the House is next in line because the House of Representatives was traditionally seen as the "people's house" or the most Democratic house. It wasn't until the early 20th Century that the Senate was elected by the people directly, so the leader of the more Democratic house was a fairer pick in the line of succession.
