US midterms: What a Democratic victory could mean for Trump, economic policy and markets
Polls point to a likely Democratic takeover of the House, while the Senate remains too close to call. Even if Trump loses control of Congress, his executive powers will remain largely intact — but the risk of policy gridlock, fiscal brinkmanship and heightened political uncertainty could rise.
US voters head to the polls on November 3 in midterm elections that could significantly reshape the final two years of Donald Trump's presidency. The elections are increasingly being seen as a referendum on his administration, with dissatisfaction over the economy, rising fuel prices and the Iran war weighing on Republican prospects. The latest Reuters/Ipsos poll puts Trump's approval rating at 32%.
On the generic congressional ballot, 52% of likely voters favour Democrats, against 44% for Republicans. Polls point to Democrats regaining control of the House of Representatives, although the Senate race remains less certain. Democrats need a net gain of four seats to overturn the Republicans' narrow 218-214 House majority and four seats to take control of the Senate, currently held by Republicans 53-47.
The stakes are high because Republicans currently control both chambers of Congress, making it easier for Trump to push his legislative agenda. A Democratic victory in either chamber would make that considerably harder, even if it does not lead to an immediate reversal of existing policies. Trump's powers do not change immediately There is, however, an important distinction between the election result and when the new Congress takes office.
The existing Congress remains in place until January 3, 2027, when the newly elected 120th Congress convenes. Until then, Republicans will retain their current majorities, giving Trump time to work with the existing Congress on legislation and appointments. Even after January 3, a Democratic takeover would not strip Trump of his presidential powers. He would retain executive authority over areas such as tariffs, immigration and foreign policy, as well as the power to veto legislation.
Overriding a presidential veto requires a two-thirds majority in both chambers, something Democrats are unlikely to achieve. What it means for economic policy For financial markets, the bigger question is not whether US economic policy will change overnight, but how much room Trump will have to push his agenda through Congress. Tariffs and trade: A Democratic Congress could step up scrutiny of Trump's tariff policies and challenge their implementation through legislation and oversight.
But the president retains considerable executive authority over trade policy. A change in congressional control, therefore, is unlikely to lead to a quick rollback of tariffs. This matters for companies exposed to global supply chains, manufacturing costs and imported inputs. Taxes and fiscal policy: The major tax legislation already enacted by the Republican Congress is unlikely to be easily reversed.
With Congress divided, passing fresh tax legislation could become much harder. Negotiations over the debt ceiling and government funding could also turn more contentious. Reuters has flagged the possibility of fiscal standoffs and government shutdown threats in 2027, irrespective of which party controls Congress. Energy and defence: Democrats could use their influence over budget negotiations to push for changes in spending priorities and demand greater scrutiny of the administration's energy and foreign policies.
However, any major legislative changes would still face the possibility of a presidential veto. Defence spending and government funding could become key points of negotiation. AI and data centres: The AI infrastructure boom is another area to watch. Morgan Stanley expects the buildout to continue, but sees state and local governments playing a bigger role in shaping data-centre development, particularly through infrastructure and regulatory decisions.
A divided Congress could make it harder to put together a comprehensive federal policy framework for the sector. Markets may get gridlock For investors, a Democratic win could mean more political friction without necessarily changing the broader direction of US economic policy. Morgan Stanley argues that even a shift in congressional control is unlikely to materially alter the near-term trajectory of fiscal policy, trade, deregulation or immigration.
Many of these policies can continue to be pursued through executive action and federal agencies, regardless of who controls Congress. The bigger near-term risk for markets could come from disagreements over government funding, fiscal negotiations and the debt ceiling. A prolonged standoff could unsettle bond markets and revive concerns about the US fiscal position. At the same time, a divided government could make it harder to introduce new policies or push through major legislative changes.
"A divided government narrows the range of policy outcomes, which supports core duration and is mildly constructive for equities. At the time of the 2018 midterm elections, ten-year yields peaked around the vote and then declined thereafter; we think a similar pattern might emerge this time around. The US dollar will likely take its cue from growth and the Fed rather than Congress," said Afonso Borges, Fixed Income Research, Julius Baer.
For India, the implications are likely to be more geopolitical than directly market-related. The main transmission channels remain global: a decline in the dollar, US yields, and oil would be favorable, while renewed tariff or geopolitical volatility would be negative. "We contend that oil prices are unlikely to decline after the midterms due to perceived constraints on Trump. The conflict is likely to reescalate, irrespective of the result, causing a sharp spike in oil prices and keeping pressure on India’s BOP and FX, and consequently on equities," said Emkay Global.
