Answer: presidental democracy
Explanation:
This is because the president is head of both state and goverment unlike some other states.
I believe they sent in strikebreakers, as a way of trying to make the striking come to an end, also it should be C
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John F. Kennedy believe that no matter others will do to them they will keep going no matter if "well or ill, that we shall pay any price, bear any burden" they will keep moving forward. If Americans United they will make a difference and be stronger but if they are separated they can not improve as what they wished for. He believe on "defending freedom" That everyone can make a change for their country.
Federalism refers to the supremacy of he powers of state governments