Answer:
The political party that used the slogan: Free soil, Free speech and Frèmont was the republicn parrty
Step-by-step explanation:
The republican party used this slogan in 1856 for the presidential election because they declared their opposition and fight against slavery. It was a very good slogan with a lot of power that still catches people's attention. Because republicans in many eyes are seen as the conservative and the strict political party in the U.S. While they were very revolutionary and zero oppressive in this run. It is very good because since that time they stated they wanted to change for the people, not for the rich. Wich is associated with them but instead in that time the Democratic party did.