For number 1 I believe its B.
Number 2 is A.
Number 3 answer is D.
Political speech is important in our system because the country (AKA America) runs off of political views and opinions
Imperialism is basically a policy that extends a country's power and influence through a military force and/or a diplomacy.
Hope I helped!
Section4. In 1865 President Andrew Johnson implemented a plan of Reconstruction that gave the white South a free hand in regulating the transition from slavery to freedom and offered no role to blacks in the politics of the South.
Hope this helps:
https://www.google.com/url?sa=t&source=web&rct=j&url=http://thehermitage.com/learn/andrew-jackson/general/war-hero/&ved=0ahUKEwiZjt6U0PnTAhXG7iYKHT4gBAsQFggfMAA&usg=AFQjCNG-keoioPWqUOBY6IOeiEJo1AXj0w
