What is the primary source of uncertainty over the limits on presidential power? A.)Some presidents win their elections by great
er margins than others. B.)Constitutional amendments have greatly increased presidential powers. C.)The constitutional definition of executive powers is broad and unspecific. D.) Some presidents increase power in times of need.
The primary source of uncertainty over the limits on presidential power is that C. the <span>constitutional definition of executive powers is broad and unspecific.</span>
Westward expansion helped the economy by land, mining, and improved transportation by rail brought settlers to the American West during the Gilded Age.
