What the 2026 midterms can change for the economy, and what they can't

THE IDEA IN ONE LINE

Congress holds the purse, not the price of oil.

WHO CONTROLS WHAT

What a new Congress can and cannot touch.

Congress decides

• Federal spending
• Taxes
• The laws behind tariffs
• Senate: Fed and cabinet nominees

Congress does not decide

• Interest rates (the Fed)
• The price of oil
• The official data

3 Novelection day

11 Decgovernment funding runs out

3 Jannew Congress sworn in

53–47current Senate

Election campaigns are full of promises about prices. But a member of Congress cannot lower the price of gasoline or set your mortgage rate. What Congress can do is real, and it matters, but it is narrower than the ads suggest.

This guide sorts the economic levers into two piles: the ones Congress holds and the ones it does not. Then it shows what changes under each likely election result.

Where things stand

Republicans hold the Senate 53 to 47 (the 47 include two independents who vote with Democrats), according to the Senate, and a narrow majority in the House. On 3 November, all 435 House seats and 35 Senate seats are on the ballot.

Forecasters such as Silver Bulletin and Decision Desk HQ currently see Democrats as favourites to win the House, with the Senate much closer. Forecasts are probabilities, not results, and they move. Plain Economy does not make predictions; we explain what each outcome would mean.

The economy tops voters' list

Share of registered voters who say each issue is very important to their 2026 vote

See the data

Registered voters saying the issue is very important (%)

Issue	All	Republican supporters	Democratic supporters
The economy	84	82	88
Future of democracy	73	69	85
Healthcare	68	53	82
Education	62	48	74
Immigration	59	72	53
Foreign policy	57	56	64
Energy policy	54	48	62
Violent crime	52	64	37

Voters' focus is clear. In Pew's survey, the economy ranked first among supporters of both parties: 82% of Republican supporters and 88% of Democratic supporters called it very important.

What Congress controls

The budget. Federal agencies can only spend money Congress approves. Right now the government runs on a stopgap law that keeps it funded until 11 December 2026. None of the 12 regular spending bills for the year has passed both chambers, according to the Committee for a Responsible Federal Budget. That deadline falls in the “lame duck” session, after the election but before the new Congress takes office on 3 January 2027.

Taxes. Tax law changes only when both chambers pass a bill and the president signs it.

Tariff law. The Constitution gives Congress the power to set duties on imports. Over decades, Congress passed laws that let the president impose tariffs in certain cases. In February 2026 the Supreme Court ruled that one of those laws, the International Emergency Economic Powers Act, does not allow tariffs. The administration then used other laws. Since 24 July 2026, duties of 10% or 12.5% apply to most imports from 60 economies under Section 301 of the Trade Act of 1974. Twenty-five states have sued to stop them.

Confirmations. The Senate approves the president's nominees, including members of the Federal Reserve's Board of Governors.

What Congress does not control

Interest rates. The Federal Reserve decides its key rate on its own. It raised that rate in September and next meets on 27–28 October. Congress can only influence the Fed slowly, through confirmations and the laws that govern it.

The price of oil. Gasoline prices follow world oil prices, which are currently driven by the war with Iran and shipping through the Strait of Hormuz. No election result changes that directly.

The economic data. Inflation and jobs numbers come from independent statistical agencies. The October jobs report arrives on 6 November, three days after the vote.

Three outcomes, side by side

These are the combinations most discussed by forecasters. Each cell describes what becomes easier or harder; none is a prediction.

Two rules apply in every scenario. First, the president can veto any bill, and overriding a veto takes two-thirds of both chambers, which neither party is close to. Second, most bills need 60 votes in the Senate to end debate, so even a majority party usually needs some votes from the other side.

Dates to watch

• 27–28 October: Federal Reserve meeting; another rate rise is possible.
• 3 November: Election day.
• 6 November: October jobs report.
• 11 December: Government funding runs out unless Congress acts.
• 3 January 2027: The new Congress is sworn in.

How to read campaign claims about prices

When a candidate promises to bring prices down, ask three questions. Which lever would they use: spending, taxes, tariffs or something else? Does Congress actually hold that lever? And would it need the president's signature? If the honest answer is “the Federal Reserve” or “the oil market”, the promise is about hopes, not powers.

For the numbers behind the debate, see the US economy before the midterms, in five charts.

Educational explainer. Plain Economy does not endorse candidates or parties.