The founders created the Electoral College and specified that senators would be chosen by the state legislatures because they feared that the people would band together with like-minded people to fight for their own interests rather than make choices based on the public good
Explanation:
Democracy was a new phenomenon and an untested form of governance throughout the world at the time it was being implemented in the USA so the founders were very skeptical in handing the powers to the public too quickly.
This was also because the voter base was very limited and consisted of the wealthy people of the country.
So it was seen as a better way to do things so the founders created the Electoral College and specified that senators would be chosen by the state legislatures.