In the aftermath of the September 11, 2001 attacks, Donald Trump perceived a unique opportunity amid the devastation in Lower Manhattan. His building at 40 Wall Street, located near the World Trade Center site, suddenly became the tallest skyscraper in the area after the twin towers collapsed. While this observation drew attention, it contrasted sharply with the broader national tragedy that claimed nearly 3,000 lives and plunged New York City, and the country, into deep mourning.

Although Trump's reaction did not foreshadow his eventual presidency at the time, the events of 9/11 helped shape the political landscape that facilitated his rise. The attacks precipitated the "forever wars" — long-term U.S. military engagements in Afghanistan and Iraq — which ultimately influenced American political attitudes and voter priorities.

Initially, Trump endorsed the U.S. invasion of Iraq but later criticized the war’s outcomes, positioning himself against the political establishment, particularly the Bush family. In the 2016 Republican primaries, he challenged Jeb Bush by highlighting the financial and human costs of the Iraq War, asserting that it had destabilized the region and benefited Iran. This stance capitalized on widespread public fatigue with ongoing conflicts and skepticism of foreign interventions, helping Trump dismantle the Bush dynasty’s political influence.

The economic repercussions of the Iraq War and subsequent events also played a role in shifting voter sentiment. The war’s contribution to rising oil prices indirectly influenced the 2008 financial crisis by prompting the Federal Reserve to lower interest rates, which contributed to the bursting of the housing bubble. The subsequent recession devastated many American communities, particularly in the Rust Belt states of Pennsylvania, Michigan, and Wisconsin. Trump tapped into the resulting disillusionment by declaring the American Dream "dead," resonating with voters who felt left behind by economic change.

The post-9/11 era also transformed immigration into a national security issue, shifting public discourse and policy. Prior to the attacks, U.S. immigration policy was largely debated as an economic matter, but the events of 9/11 fueled a dramatic increase in anti-Muslim sentiment and nativism. Between 2000 and 2001, hate crimes targeting Muslims surged by approximately 1,700 percent. By 2016, immigration became a central theme in Trump’s campaign, marked by calls for stricter borders and bans on travel from several predominantly Muslim countries.

This new political climate, shaped by the legacy of 9/11 and its aftermath, influenced key electoral contests in the following years. Barack Obama’s opposition to the Iraq War aided his 2008 presidential win, while Hillary Clinton’s association with the war became a liability during the 2016 campaign. Trump further distinguished himself by leading the "Birther" movement and adopting a confrontational stance toward Obama, exploiting divisions within the electorate.

New York City, repeatedly a focal point of American history, stood at the intersection of these developments. From the destruction of the World Trade Center to the historic night of Trump’s election victory in 2016, the city remained a backdrop to pivotal moments in the country’s political evolution. The connection between 9/11 and Trump’s ascent underscores the enduring impact of that day on the nation’s trajectory.