I need a chosses to answer
That is right, you would be using "peer" testimony.A man who gives peer testimony may not have ability in a specific field, but rather he or she likely has personal involvement with the current issue. In spite of the fact that peer testimony can without much of a stretch be tested, it can be a capable device in influencing a crowd of people, especially when conveyed or given by a very famous big name.
The correct answer for your first question is: Dept. of State, which advises the President and is equivalent to the foreign ministry of other countries. It also represents the country in International affairs.
Regarding your second question “the department of state is the lead federal agency and oversees u.s. government coordination and support to a host nation's internal defense and development/coin efforts?” The answer to this question is: yes, that is correct.
The election results were contested by the opposing party due to disputes over it.