How US Midterm Elections Shape Forex Markets and the US Dollar

• Legislative gridlock resulting from divided government typically stabilizes market expectations by capping major fiscal spending and policy overhauls.
  
• Federal Reserve monetary policy and interest rate differentials remain the dominant drivers of US dollar valuations, rather than broader election-driven fiscal-political cycles.
  
• Shifts in congressional control directly affect executive authority over trade and tariff enforcement, heightening volatility for key currency pairs such as EUR/USD, USD/CAD, and USD/MXN.

Understanding the US midterm elections and their potential market impact is important for forex traders monitoring macro markets. The outcome shapes legislative priorities, trade policy, fiscal spending, and tax reforms. Shifts in party control can lead to legislative gridlock or major policy changes, impacting market sentiment, government bond yields, and the valuation of the US dollar in global currency markets.

It is important to note that while US midterm elections play a key role, they are only one of many factors driving US dollar exchange rates. A broader matrix of macroeconomic fundamentals heavily influences currency movements, most notably Federal Reserve monetary policy, inflation data releases, non-farm payrolls and employment reports, global geopolitical developments, and overall international economic stability.

Eliminating political bias when trading major political events like midterm elections requires shifting from personal partisan preferences to an objective, rules-based strategy focused entirely on various parameters such as market pricing, liquidity, and probability distribution. A common trap for some traders is projecting their political preferences onto the market (assuming a favored candidate’s victory will automatically boost equities or strengthen the dollar) when, in reality, markets may be trading on the resolution of uncertainty itself rather than on the party that wins.

To neutralize emotional bias, traders may consider creating a dual-scenario matrix that maps out concrete market reaction plans for both outcomes, using quantifiable metrics such as implied volatility, order book depth, and interest-rate yield differentials rather than political commentary. Setting strict pre-event risk parameters, such as reducing position sizing, considering higher timeframe chart structures, and waiting for initial post-election price discovery to establish a clear directional bias, helps ensure that trade execution remains driven by price action rather than partisan conviction.

Historically, leading up to major elections, heightened uncertainty often drives implied volatility higher across different financial instruments and the US dollar. Once voting concludes and political clarity emerges, risk premiums are likely to dissipate.

A single-party sweep gives the administration room to push expansive spending, tax reforms, or major regulatory overhauls, which typically bolsters US Treasury yields and fuels a bullish bias for USD. Conversely, the far more common outcome, a divided Congress, results in legislative gridlock. While gridlock caps aggressive fiscal stimulus, it provides predictable policy conditions that tend to stabilize risk sentiment, shifting FX traders’ primary focus back to Federal Reserve rate path expectations and core economic data.

Leading up to the US midterm elections (marked by the vertical orange lines), the Average True Range (ATR) indicator on the US dollar index DXY consistently tracks within the 1.000 to 2.000 range as indicated by the arrows for 2010, 2014, and 2018.

Market volatility in 2022 was unusually high compared to standard election cycles, driven primarily by severe macroeconomic headwinds rather than political uncertainty alone. Headline inflation reaching 40-year highs forced the Federal Reserve into an aggressive rate-hiking campaign, executing four consecutive 75-basis-point interest rate increases between June and November 2022. This aggressive monetary tightening pushed the US Dollar Index (DXY) to multi-decade highs, driving a sharp surge in the Average True Range (ATR) indicator, reaching peak levels near 2.500, as currency and bond markets continuously repriced Fed terminal rate expectations amid broader election risk.

Monetary policy (controlled by the Federal Reserve) and fiscal policy (managed by Congress and the White House) interact dynamically to shape interest rates, inflation expectations, and capital flows, which directly determine the value of the US dollar. When Congress enacts expansionary fiscal policy, such as large tax cuts or increased federal spending, it stimulates domestic demand, which can fuel higher inflation and push government borrowing higher.

In response, the Federal Reserve often tightens monetary policy by raising the federal funds rate to keep inflation in check. This “loose fiscal/tight monetary” policy mix pushes US Treasury yields higher, drawing foreign capital into dollar-denominated assets and strengthening the greenback. Conversely, if a restrictive fiscal environment (such as austerity or gridlock) slows economic growth, the Fed has room to implement monetary easing, lowering interest rates or purchasing bonds, thereby narrowing yield differentials relative to other central banks and potentially weakening the US dollar. Ultimately, the dollar’s direction depends on whether monetary and fiscal policies reinforce each other or pull in opposite directions, driving the real yield relative to foreign currencies.

A midterm election gridlock occurs when a midterm election splits control of the US federal government between political parties, typically leaving one party in charge of the White House and the opposing party in control of the House of Representatives, the Senate, or both. This division makes passing major legislation nearly impossible, as major spending bills, tax reform, and policy overhauls require bipartisan compromise that rarely materializes. For financial and foreign exchange markets, gridlock essentially “freezes” fiscal policy, removing the threat of sudden tax increases or massive deficit spending, thereby creating a predictable policy environment and shifting traders’ primary focus back to economic data and central bank actions.

• Election outcome: Democrats won back control of the House of Representatives, breaking the two-year Republican trifecta, while Republicans expanded their majority in the Senate.
  
• Fiscal policy shift: The Democratic House victory effectively ended the prospect of further tax cuts at the time or further unilateral fiscal expansion following the massive Tax Cuts and Jobs Act of 2017. It also introduced intense congressional oversight, budget brinkmanship¹, and a record-length 35-day federal government shutdown² over border wall funding in late 2018/early 2019.
  
• FX & Market impact: Before the election, expectations of tax-cut extensions had driven up Treasury yields and supported the dollar. The return of divided government capped fiscal stimulus and highlighted trade policy (tariffs) as the primary executive tool. The elimination of further fiscal tailwinds, paired with mounting global growth concerns, led the Federal Reserve to pause its interest-rate-hike cycle in early 2019. Consequently, the US dollar lost its upward fiscal momentum, entering a range-bound, sideways trading pattern against major currencies.

• Election outcome: Republicans won a narrow majority in the House of Representatives, while Democrats maintained control of the Senate.
  
• Fiscal policy shift: This division halted the large-scale fiscal stimulus packages seen during the first two years of the Biden administration (such as the Inflation Reduction Act and American Rescue Plan). Divided government led to the high-stakes 2023 Debt Ceiling Standoff³, which was ultimately resolved by the Fiscal Responsibility Act of 2023⁴, capping federal spending for two years.
  
• FX & market impact: The removal of the potential for major new government spending was welcomed by currency markets concerned about record inflation and high US budget deficits. Gridlock limited expectations for future debt issuance, removing some upward pressure on long-term Treasury yields. The primary driver of USD’s rapid shift back to the Federal Reserve’s aggressive rate-hiking campaign to tame inflation was the dollar’s tendency to track Fed rate expectations rather than election-driven fiscal fears.

The upcoming 2026 Midterm elections can significantly alter the trajectory of US trade policy and tariff enforcement, primarily by shifting congressional oversight and placing legislative limits on executive trade authority. Under the US Constitution, Congress holds the primary authority to lay and collect duties; however, past legislation has delegated broad emergency powers to the President to impose unilateral tariffs on national security or economic grounds.

If the midterms produce a divided government - where the opposition party gains control of either chamber - Congress can influence trade policy through several key mechanisms, such as targeted legislative overrides, aggressive committee oversight, and electoral feedback from retaliatory tariffs affecting key export industries.

By contrast, a unified government aligned with the White House allows existing tariffs to remain entrenched, expand in scope, or be deployed aggressively in ongoing disputes with minimal legislative pushback.

With all that said, continuity of tariffs across administrations is also possible. Following the 2020 transition, President Biden largely maintained the Section 301 tariffs on Chinese imports originally established by the Trump administration, reflecting a broad bipartisan consensus to protect critical US industries. Rather than rolling back these restrictions, the administration kept duties in place on roughly $300 billion in Chinese goods.

If midterm outcomes shift trade policy, China, Mexico, Canada, and the European Union face the greatest exposure, given their high trade volumes with the US and direct sensitivity to statutory trade actions. This refocuses attention on currency pairs such as EUR/USD, USD/CAD, and USD/MXN.

While the US President holds primary authority over foreign policy and military operations as Commander-in-Chief, Midterm elections can significantly influence US foreign policy and Middle Eastern conflicts through congressional budgetary constraints, war powers oversight, and electoral incentives. Any congressional action would likely depend on how the situation develops on the ground over time.

Since the outbreak of conflict in the Middle East, elevated global crude oil and natural gas prices have transmitted a persistent inflationary pressure across the broader economy. Because energy is a foundational input for transport, manufacturing, and agricultural supply chains, sustained energy costs have kept headline inflation metrics elevated and raised the baseline cost of essential goods and services.

This creates a striking economic paradox leading into the midterm elections: while traditional macroeconomic indicators, such as robust GDP growth, low unemployment, and steady corporate earnings signal an economy in solid health, everyday voters experience the immediate friction of a higher cost of living at the gas pump and grocery checkout. Historically, when high inflation erodes real wage gains, voter sentiment tends to weigh household purchasing power far more heavily than headline economic growth figures, making cost-of-living pressures a pivotal variable for congressional candidates on the ballot.

In summary, US midterm elections represent a critical juncture for forex markets, introducing short-term volatility and shifting the long-term fiscal landscape. While election cycles initially trigger uncertainty and elevated risk premiums, the typical emergence of legislative gridlock often stabilizes market expectations by capping major policy overhauls and fiscal expansion. Ultimately, currency traders must balance the political signals of midterms against primary macroeconomic drivers - most notably Federal Reserve monetary policy, interest rate differentials, and underlying economic data - which remain the dominant forces guiding the trajectory of the US dollar.

Footnotes

¹https://www.brookings.edu/articles/how-can-we-take-partisanship-out-of-the-budget-process-the-lessons-from-this-independent-committee-can-help/

²https://apnews.com/article/30769167ab7a4ef9adf880d020b775dd

³https://www.conference-board.org/publications/2023-US-debt-ceiling-crisis

₄https://www.congress.gov/bill/118th-congress/house-bill/3746/summary/00