Democratic veterans from 2 decades of budget wars say the national debt isn’t worth holding the U.S. and global economy ‘hostage’

In 1989, New York real estate developer Seymour Durst commissioned Manhattan’s now-famous National Debt Clock. He wanted to highlight how much the national debt rose during the Reagan administration and call attention to the huge debt being passed on to future generations. But even a debt critic like Durst underestimated how much America loves spending, as it took less than 20 years for the unofficial tracker to run out of digits as the country’s bill surpassed $10 trillion in 2008. The debt has continued to rise since then, and in January breached the $31.4 trillion ceiling set by the current debt limit, a century-old political tool that now has Congress and the White House scrambling for a solution. Republicans argue that debt is a burden for future generations, but some experts say the standoff could be the bigger threat, as yet another ominous clock ticks towards an unprecedented default on the government’s debt.

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Talks between President Joe Biden and Republican House Speaker Kevin McCarthy to raise the debt ceiling so the government can continue borrowing money to pay its bills are progressing slowly. Time is running short, as the Treasury could run out of cash as early as June 5, according to Treasury Secretary Janet Yellen.

At the debate’s core is the national debt. The U.S. government has been running a deficit since 2002, spending more than it earns, meaning that it has had to borrow larger and larger amounts to make its payments. And not only is the debt rising, it's growing faster than the economy. The nation’s debt-to-GDP ratio, which measures debt over a longer period of time relative to the economy’s size, was 121% last year. That number could rise to 225% by 2050 under current policies, according to a Wharton School model.

“The trajectory for the debt is clearly a problem, and I think everybody agrees, because if you look at the forecast, we have debt increasing with no end in sight,” Louise Sheiner, policy director of the Brookings Institution’s Hutchins Center on Fiscal and Monetary Policy, a center-left monetary and fiscal policy research organization, told Fortune.

View this interactive chart on Fortune.com

But the U.S. is also accustomed to running up a tab, as the government has run a surplus only five times in the last 50 years. Economic policy experts and former government officials tell Fortune that addressing the country’s fiscal sustainability is important, but there is no universally agreed-upon point where debt begins to harm the economy. Meanwhile, mechanisms that weaponize the debt for political goals, like the ongoing ceiling standoff, might do much more damage than high debt ever could, and even risk creating the sort of intergenerational crisis Republicans say they are desperate to avoid.