The power of the presidency in using executive orders has expanded because they can sometimes respond more quickly to an urgent need. Executive orders allow presidents to take action without the need for congressional approval, which can be a slow and cumbersome process. In times of crisis or urgent need, this can be an important tool for the president to have.
Additionally, Congress has often been gridlocked or unwilling to act on certain issues, which has led presidents to rely more heavily on executive orders to accomplish their policy goals. This has been particularly true in recent years, as political polarization and partisan divisions have made it increasingly difficult for Congress to pass legislation.
While the Constitution does grant the president the power to issue executive orders, the extent of that power has been a subject of debate and controversy throughout American history. Some argue that the use of executive orders has become too broad and that presidents are overstepping their constitutional authority. Others argue that executive orders are a necessary tool for presidents to exercise their leadership and respond to the needs of the country.