This question is incomplete. Here's the complete question.
Which of the following was one way reformers attempted to undermine the influence of political machines?
by organizing voter registration drives in immigrant neighborhoods
by having cities adopt the council-manager form of local government
by prosecuting immigrants accused of bribery and other forms of political corruption
by establishing political councils to monitor and document the activities of the machines
Answer: by having cities adopt the council-manager form of local government
Explanation:
Progressive reformers developed a movement in the early 1900s which produced two new forms of government, and the council-manager form was one of them. This development was intended to weaken the influence of political machines in the government. Partisanism was meant to be replaced by efficiency and professionalism.
The environment in which Kennedy was assassinated contributed to its tragic impact because the assassination took place in front of a public gathering. It was shocking for those people that had come to see Kennedy drive by in the car. It was a shocking incident for those people that were waving on seeing Kennedy in his open car.
The u.s. security was threatened because Jefferson signed a treaty that said he would not trade with either countries which decreased the money in America by a lot. It did that because they were the top trading partners of the u.s.
Easy defeat of foreign invaders is obviously positive, so it couldn’t be a factor that would topple an empire. Security is good.