Final answer:
Presidential power has increased as the role of government has grown, and advancements in technology have further enhanced this power.
Step-by-step explanation:
The power of the presidency has increased as the role of government has grown over time. As the federal government has taken on more responsibilities, the president has been given more authority to address domestic and foreign policy challenges. Additionally, advancements in technology, such as radio, television, and the internet, have allowed presidents to directly communicate with the public, further enhancing their power and reach.