"people who measure high in "conscientiousness" (strong sense of duty, discipline, impulse control) and "emotional stability" (even-temperedness) tend to be stronger supporters of the party."

Republican

Explanation:

Republicans firmly insisted that new western settlements should be free of slavery. The reason is that the expansion of slavery would threaten the right of free labor. Besides, before US president Franklin D. Roosevelt's policy of New Deal, the Republican party was acknowledged the most modern in the boost of civil rights and social justice.

the chair is the committee member from the majority party who has the most seniority. in the south carolina senate, the chair is the committee member from the majority party who has the most committee seniority.