US Midterms Put Bitcoin on Edge as Markets Weigh a Possible Democratic Sweep

The US midterm elections are putting financial markets on alert as investors prepare for a possible shift in congressional control. Prediction markets increasingly favor a Democratic victory, raising questions about policy uncertainty, technology regulation, and the future of US crypto legislation.

Bitcoin investors are also watching closely. The cryptocurrency experienced significant declines around the 2018 and 2022 midterm elections, leading traders to question whether history could repeat itself.

The 2026 elections take place on November 3, with markets already assessing the potential impact of different political outcomes.

Democratic sweep becomes the leading market scenario

Prediction markets have increased the implied probability of Democrats gaining control of both chambers of Congress. Reuters reported that Polymarket placed the probability of a Democratic sweep at approximately 72% on November 2.

JPMorgan's separate scenario analysis assigned a 66% probability to a Democratic-controlled House and Senate. The bank expects the S&P 500 to move between a 0.25% decline and a 0.50% gain under this outcome.

A split Congress, with Democrats controlling the House and Republicans retaining the Senate, carries a 26% probability in JPMorgan's analysis. That scenario could lift the S&P 500 by 0.5% to 1%, as investors potentially welcome legislative gridlock.

The relatively narrow projected movements suggest that much of the expected election outcome may already be reflected in stock prices. A surprise result could therefore have a greater impact than the most likely scenario.

Bitcoin's history around midterm elections

Bitcoin's performance around previous midterms has raised concerns among traders.

In 2018, Bitcoin traded near $6,400 around Election Day before falling to approximately $3,180 in December. That represented a decline of roughly 50% from its election-day level to its later low.

In 2022, Bitcoin was trading near $20,600 around the election before reaching approximately $15,800 in November, a decline of around 23%. The collapse of FTX during the same month added significant pressure to an already weak crypto market.

These figures are important, but they do not prove that midterm elections caused the declines. Both periods coincided with broader crypto bear markets and other market-specific problems.

Bitcoin's four-year halving cycle may also help explain the pattern. Previous midterm years have often coincided with periods of weakness in Bitcoin's market cycle.

Historical stock market performance offers a different signal

While Bitcoin's short-term history appears mixed, the broader US stock market has historically performed well after midterm elections.

The S&P 500 has gained an average of approximately 15.17% during the 12 months following midterm elections since 1950.

This suggests that markets can recover once election uncertainty clears, even when the president's party loses control of Congress.

However, historical stock market returns should not be treated as a Bitcoin price forecast. Cryptocurrency markets have different drivers, including liquidity, institutional demand, regulation, and Bitcoin's supply cycle. 

Crypto regulation could become a major political issue

The election outcome could also influence the future of US cryptocurrency regulation.

The proposed CLARITY Act, which aims to establish clearer oversight rules for digital assets, remains in legislative uncertainty after failing a key Senate procedural vote in September.

A Democratic-controlled Congress could increase scrutiny of crypto companies and political connections involving the industry. A Republican-controlled Congress could offer a different path for legislation and regulatory priorities.

Altcoin Buzz previously examined why the CLARITY Act failed in the Senate, while its recent Bitcoin market recovery report discussed how the elections could influence future crypto legislation.

Will Bitcoin fall again after the election?

Bitcoin's previous midterm declines have made traders cautious, but repeating the same pattern is not guaranteed.

Institutional investment, spot Bitcoin ETF flows, macroeconomic conditions, and the outcome of the recent Binance security incident could all influence market direction.

The election may create short-term volatility as investors react to changes in political control and regulatory expectations. However, the longer-term direction will depend on broader market conditions rather than the election result alone.

For now, traders are watching whether Bitcoin can maintain its support levels and whether institutional demand returns after recent ETF outflows.

The key question is not simply whether Bitcoin will repeat its 2018 or 2022 performance, but whether the current market environment is different enough to break the historical pattern.