Why have the president's foreign policy powers grown despite the fact that there have been no constitutional changes since the founding?

I've tried and searched various terms on Google and all I'm getting is the "crisis atmosphere of the Cold War" and the possibility of a nuclear war. I can't correlate how it relates to the question. Please help!

Is our country facing the same kinds of threats and problems today that we faced in the 1700s? the 1800s? the 1950s? etc.

President Lincoln exceeded the powers intended by the framers of the Constitution for the President. In a sense, they were foreign policy powers because the Civil War was fought against a political entity that declared itself a separate and independent nation.

Apparently in times of crisis, Presidents have wanted the power to act quickly and decisively. Congress has usually gone along with them, so in that situation, the checks and balances have not been in place.

Why have the powers grown? Because presidents have wanted them and Congress hasn't checked them.

To understand why the president's foreign policy powers have grown despite no constitutional changes, it's important to examine the historical context and evolution of the presidency, as well as the impact of international events.

1. Historical Background: The founding fathers envisioned a relatively weak executive branch, particularly in foreign affairs, to prevent the abuse of power. The Constitution grants Congress the power to declare war, regulate trade, and make treaties. However, over time, presidents have interpreted and expanded their foreign policy powers through various means.

2. Executive Interpretation: The broad language of the Constitution has allowed presidents to interpret their foreign policy powers quite expansively. For example, presidents can argue that their authority as the head of the executive branch includes inherent powers to conduct foreign affairs, negotiate treaties, and represent the nation abroad. This allows them to bypass Congress in some instances.

3. International Events: The external environment, especially international crises and conflicts, has often provided justifications for an expansion of presidential foreign policy powers. The Cold War was a transformative period where the threat of nuclear war heightened the sense of urgency and necessitated quick decision-making. Presidents argued that they needed more discretion and flexibility to respond effectively to potential threats.

4. Congressional Delegation: Congress has voluntarily delegated significant powers to the executive branch in matters of foreign affairs. Through legislation such as the War Powers Resolution, Congress has given the president authority to deploy troops and take military actions for a limited time without formal declarations of war. This delegation of power has further contributed to the growth of presidential foreign policy powers.

5. Executive Orders: Presidents have also used executive orders to solidify their foreign policy powers. Although executive orders can be contested and invalidated, they can still exert considerable influence on foreign policy while being difficult to overturn.

In summary, the growth of presidential foreign policy powers can be attributed to a combination of executive interpretation, international events, delegation by Congress, and the use of executive orders. While the Cold War crisis atmosphere and the threat of nuclear war did impact this expansion, it is not the only factor, and there are many other aspects to consider in understanding this trend.