Answer:
Both people from other countries and traders in our country.
Step-by-step explanation:
Politicians usually propose import tariffs to offset the supposed price benefits and exert pressure for policy changes abroad. What proponents often fail to notice is that such tariff policies, while certainly hurting their targets, can also be very costly at home. And suddenly, the self-inflicted harm can be substantial even when trade partners do not retaliate with tariffs of their own.