The president’s role in a political party is to set the legislative agenda true or false

true

Explanation:

also he is a leader to the party and needs to support the party's principal goals  

answer; make laws;

the secretary of defense is the principal defense policy advisor to the president. under the direction of the president, the secretary exercises authority, direction, and control over the department of defense.

as you did not provide any choices for me to choose from to give you a direct answer, this is the only information i can provide.