Slavery effected congress by having people in congress have their opinions about slavery. So one part of congress agrees with slavery and the other part disagrees with slavery.
They also did not compete with the Natives for land. ... They respected Native territories, their ways, and treated them as the human beings they were. The Natives, in turn, treated the French as trusted friends. More intermarriages took place between French settlers and Native Americans than with any other European group.