Explain how Andrew Jackson's presidency represented the changing relationship between political candidates and the American people?

The spoils system replaced bureaucracy. Nominating conventions replaced the caucus system. Democracy was expanded to include more Americans.

Explanation:

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).