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Trump’s Spending Bill Faces Market Backlash Amid Debt Concerns: Wharton Expert Analysis

Hannah Perry | May 27, 2025

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Trump Risks Market Backlash Over Spending Bill, Warns Wharton Professor

As President Donald Trump pushes for the passage of a comprehensive spending bill, experts are voicing concerns over the potential repercussions on the national debt and tariffs. According to Kent Smetters, a professor at the Wharton School of the University of Pennsylvania, the President is setting himself up for a “punch in the face” from the financial markets should he proceed without a clear plan addressing these pressing issues.

Promises Made on the Campaign Trail

During his campaign, Trump promised to rein in inflation, cut taxes, and rebalance trade relationships with key international partners. His recent economic initiatives, dubbed the “One Big, Beautiful Bill Act,” aim to fulfill these promises by extending the significant tax cuts introduced in 2017. These proposed tax cuts are projected to bolster gross domestic product (GDP) growth and increase disposable income for American households.

The White House claims that these measures will result in a long-term GDP increase of between 2.6% and 3.2%, while also providing tax relief for Americans earning between $30,000 and $80,000—a move touted to reduce their tax burden by approximately 15%. Furthermore, claims of enhancing child tax credits and reducing the national deficit by $1.6 trillion are at the forefront of this legislative agenda.

The Debt Dilemma

Despite the optimistic projections, economists are increasingly skeptical. The national debt currently stands at a staggering $36.2 trillion, raising alarms about America’s capacity to service that debt. Some key questions arise: What happens when a financial crisis hits? Will the U.S. then struggle to find buyers for its debt, leading to curtailed spending or increased interest rates? Or will it resort to diluting the currency further in efforts to stave off insolvency?

Even if the Trump administration believes that economic growth can help balance the debt-to-GDP ratio, the increased spending may compound existing fiscal challenges. Smetters emphasizes that while tax cuts can indeed stimulate consumer spending and enhance business investments, they may do so at the expense of long-term fiscal stability.

The Growth Argument Under Scrutiny

Joshua Rauh from Stanford University argues that tax cuts are essential for economic growth and improving the debt situation. “Higher tax rates discourage work, savings, and investment,” he explains, suggesting that tax cuts could lead to an overall uptick in economic activity. However, he acknowledges that the recent Congressional Budget Office (CBO) assessment indicates that the proposed legislation could increase the national deficit by $3.8 trillion, particularly in light of insufficient Medicaid savings.

Critics, like Smetters, highlight that the supposed economic growth from tax cuts is essentially a “work of fiction.” He points out that real wage earners from lower income brackets, in an effort to qualify for Medicaid benefits, may end up reducing their work hours. This ultimately distorts the labor market dynamics in a way that presents a façade of economic activity while potentially decreasing overall tax revenue.

Historical Context and Future Implications

Michael Linden from the Washington Center for Equitable Growth remarks that the root of America’s budget problems can largely be traced back to tax cuts over the last two decades. Linden argues that if these unpaid tax breaks hadn’t been enacted, the national debt trajectory would have significantly improved.

Moreover, while tariffs could provide an alternate revenue stream, experts stress that their sustainability hinges on how engaged the U.S. continues to be in global trade. Smetters warns that without significant action addressing the national debt, the financial markets may no longer consider the U.S. too big to fail, leading to unpredictable volatility that could indeed provoke a market reaction.

The Road Ahead

The implications of Trump’s proposed spending bill not only delineate a critical juncture for U.S. fiscal policy but could also serve as a barometer for the financial resilience of the nation. Smetters cautions that failure to address the burgeoning national debt may very well culminate in capital markets losing faith, which would have dire consequences reminiscent of a financial crisis.

Ultimately, a fine balance must be achieved—one that weighs the stimulating power of tax cuts against the stark reality of America’s fiscal responsibilities. As the discourse surrounding this spending bill continues to unfold, the scrutiny of economists and market analysts will likely shape the broader economic narrative in the months and years to come.