Republican lawmakers quickly pointed to “unaffordable socialist policies” and runaway spending after the US national debt crossed $40 trillion, a milestone that has reignited partisan finger‑pointing in Washington.
Economists and policy analysts, however, say the long buildup of debt is largely the result of policy choices strongly associated with Republican administrations: substantial tax cuts favoring high-income households, sustained military spending, and expensive conflicts abroad. Analysts note that President Donald Trump’s time in office has coincided with a particularly large increase in the debt — roughly $11.6 trillion across his two terms so far — despite his campaign promises to eliminate the national debt.
“I have never been a deficit hawk, and I’m not about to change my religious affiliation now,” wrote Dean Baker, senior economist at the Center for Economic and Policy Research, arguing that the recent rise in debt was “run up almost entirely due to Republican tax cuts and their inept management of the economy.”
Nobel laureate Paul Krugman made a similar point, saying the $40 trillion mark underscores what he called the Trump administration’s irresponsibility: unfunded tax cuts that primarily benefit the wealthy, large and wasteful military expenditures, and other choices that widened the deficit.
Analysts at the Center for American Progress and others have quantified the effect of tax policy. Bobby Kogan and colleagues estimated that tax cuts enacted under Presidents George W. Bush and Trump accounted for a majority of the increase in the debt ratio since 2001 — roughly 57% — and, if one‑time emergency costs from the Great Recession and the Covid‑19 response are excluded, an even larger share.
Last year’s major tax package signed by Trump is projected to further increase deficits and disproportionately benefit wealthy taxpayers and large corporations, adding more trillions to the national debt over the next decade.
Former Labor Secretary Robert Reich urged critics to remember who benefits from borrowing: “it’s largely because of tax cuts to the wealthy — who are also the major recipients of interest on that debt,” he wrote, noting that interest payments now consume an increasing share of federal outlays.
The $40 trillion threshold arrived sooner than some forecasters had expected, in part because federal revenue was reduced after some Trump administration tariffs were struck down in court. The milestone translates to roughly $120,000 per American when divided by the population, a figure critics point to when warning of the long‑term burden on future generations.
Democratic members of Congress seized on the milestone to criticize Republican budget priorities. Representative Chris Deluzio (D‑Pa.) noted that interest on the debt is now consuming more public funds than even the military and Medicare, and warned that current Republican policies are leaving a “colossal mess” for younger Americans.
As the partisan debate continues, budget watchers say the central question is not the symbolism of a dollar figure but the policy choices that drove the debt upward — and what steps, if any, lawmakers will take to alter that trajectory.

