Trump's "America First" policy, articulated since his inauguration, has led to the withdrawal of the United States from agreements such as the Paris Climate Accord and the Iran nuclear deal. These actions, coupled with trade disputes with countries including China and members of the European Union, have prompted discussions about the future of multilateralism and U.S. leadership on the global stage.

In a past address, Trump alluded to the 19th-century doctrine of "manifest destiny," suggesting a renewed focus on American interests and expansion. This rhetoric has been interpreted by some as a departure from traditional U.S. foreign policy, which has historically emphasized international cooperation and the promotion of democratic values.

The Trump administration's pursuit of acquiring Greenland, though ultimately unsuccessful, further exemplified this shift. Trump stated, "We have to have it," reflecting a transactional approach to international relations that has unsettled some allies.

Critics of Trump's policies argue that his actions have weakened international institutions and undermined U.S. credibility. Supporters, however, contend that his policies prioritize American interests and challenge what they see as unfair trade practices and unequal burdens within alliances.

The implications of Trump's foreign policy decisions are still unfolding, with ongoing debates about their long-term effects on global stability and the future of international cooperation. The upcoming presidential election could signal a continuation of current policies or a return to more traditional diplomatic approaches.