Wall Street braces for Democratic gains as 2026 midterm election nears
Investors are preparing for a blue wave in the midterm election on Tuesday that will determine who controls Congress for the remainder of President Trump's term.
Key points
- Investors expect Democrats to win the House in next week's midterm election, according to analyst reports.
- A divided government would likely limit major policy changes and could make debt ceiling talks harder.
- Piper Sandler projected Democratic proposals would add $5 trillion to the deficit over a decade.
Wall Street investors expect Democrats to make gains in next week's midterm election, with polling showing the party likely to take control of the House of Representatives while President Donald Trump's approval rating stays low. Analysts are advising clients on how to prepare for the Congress that emerges after Tuesday's vote, which will decide which party controls both chambers for the rest of Trump's presidency.
Analysts see a divided government as likely to produce gridlock, since Trump's veto power would block major Democratic policies. Wolfe Research surveyed 138 investors and found 96% expected Democrats to win the House, while 58% expected them to take the Senate.
Spending and deficit concerns
Analyst reports reviewed by CNBC show concern about the spending plans of a Democratic-controlled Congress. An Oct. 29 Piper Sandler report analyzing Congressional Budget Office data projected that Democratic policy proposals "would add $5 trillion to the deficit over the coming decade," assuming repeals of Trump's tariffs and reversals of cuts to Medicaid, nutrition programs and Affordable Care Act subsidies.
Analysts also note that divided government typically makes must-pass legislation, such as government funding and raising the debt ceiling, harder to enact. The Bipartisan Policy Center expects the U.S. to reach the debt limit between late-winter and mid-summer 2027.
A blue House is the obvious consensus base case
— Wolfe Research
Senate and Fed questions
Most analysts believe Democrats are within reach of a Senate majority, though polls put that outcome as much less likely than a House flip. TD Securities called a blue wave its base case in an Oct. 20 report, and Raymond James said Democrats are in a solid position to win the House and increasingly likely to capture the Senate.
TD predicted that a Democratic Senate could ease concerns about the Federal Reserve's independence from Trump, since new Fed members need Senate confirmation. Democrats are also expected to investigate companies that have done business with the Trump administration if they win a chamber, using committee subpoena power.
