Direct answer
The United States now owes more than $40 trillion, and investors are worried because the government keeps spending roughly $2 trillion more each year than it collects. With midterm elections due on Tuesday, Reuters reported on October 30, 2026 that investors see no easy fix, whichever party comes out ahead.
What happened
The national debt passed $40 trillion in August 2026, according to US Treasury data. The budget deficit for fiscal year 2026, which ended September 30, was about $2 trillion, or roughly 6 percent of the size of the economy. The Congressional Budget Office put the deficit at $1.993 trillion, while the Treasury Department reported that the government spent $1.97 trillion more than it collected.
Interest on the debt is now a huge bill on its own. The Congressional Budget Office reported interest costs of $1.143 trillion in fiscal 2026, more than the $1.069 trillion spent on Medicare. Debt held by the public, the part that carries interest costs most directly tied to market rates, stood at $32.44 trillion on October 6, about 100.6 percent of GDP.
Reuters reported that concerns over the fiscal outlook have weakened confidence in US Treasuries this year, as investors expect heavier government borrowing in the years ahead. Prediction markets point to Democratic majorities in both the Senate and the House as the most likely outcome on Tuesday, and a recent Reuters poll showed an 11 point Democratic advantage.
Investors told Reuters that neither outcome looks like a quick fix. If Republicans retain control, investors expect more of the same pressures on the public purse. If Democrats win control of Congress, political gridlock may make it harder to agree on new spending, yet meaningful deficit reduction is still unlikely, investors said.
Why it matters for beginners
It helps to keep two words apart. The deficit is the yearly gap between what the government spends and what it collects. The debt is the total of all past gaps added up, plus interest. A deficit of about $2 trillion a year means the total debt keeps climbing by roughly that much each year.
To cover the gap, the government sells Treasury bonds to investors around the world. Treasuries are usually treated as one of the safest investments, so they sit at the heart of the financial system. When investors worry that borrowing will keep rising, they may demand higher interest rates to lend, and those rates feed into mortgages, car loans, and business borrowing.
A debt pile above $40 trillion does not mean a crisis tomorrow. The US borrows in its own currency and its bonds remain in heavy demand. But interest costs of more than $1 trillion a year already eat up money that could go to other priorities, and that is why investors watch the fiscal picture so closely.
The US economy is still growing. The US economy grew at a 3.4 percent annual rate in the third quarter of 2026, as covered in our post on US growth, which gives the government more tax revenue over time. Growth alone, however, has not closed a deficit near 6 percent of GDP.
What to watch next
First, the midterm results on Tuesday, and whether either party gains a clear path to change tax or spending policy. Second, Treasury borrowing plans, which will show how much new debt the government expects to sell. Third, bond yields, which show what return investors demand to lend to the government. And fourth, the next Congressional Budget Office and Treasury updates, which will show whether the deficit is shrinking or still running near $2 trillion a year.
FAQ
What is the difference between the deficit and the debt?
The deficit is the shortfall in a single year. The debt is the running total of all past shortfalls. Think of the deficit as this year’s overspend and the debt as the total amount still owed.
Does $40 trillion in debt mean a financial crisis is coming?
Not on its own. What matters more is whether the debt keeps growing faster than the economy, and whether interest costs keep rising. Investors are worried about the trend, not predicting a collapse.
Why do investors care about an election?
Because the party in control of Congress shapes tax and spending decisions. Those decisions decide how big future deficits will be, and therefore how much the government must borrow.
Can the debt keep growing forever?
In theory, a government can keep borrowing as long as investors keep lending at affordable rates. The risk is that ever higher borrowing pushes interest rates up, which makes the debt itself more expensive to carry.