4 Market Signals Ahead of the Midterms
Morgan Stanley's head of U.S. public policy research discusses four key takeaways about the 2026 midterm elections' market implications: executive-led policies will likely persist regardless of congressional control, midterms are poor predictors of presidential elections, AI regulation matters mainly through data center policy at state/local levels, and market impacts will be primarily sector-specific rather than macroeconomic.
Summary
Ariana Salvatore from Morgan Stanley presents four key takeaways regarding the 2026 midterm elections and their potential market ramifications. First, while midterms can change governing mechanics, they are unlikely to alter the core executive-led policy agenda. The speaker notes that major policy uncertainties since early 2025—including tariffs, trade policy, deregulation, immigration, and export controls—remain within White House authority and will persist even if congressional control changes. Congress matters more on fiscal policy, though outcomes remain relatively narrow and focus on timing of SNAP and Medicaid cuts, defense spending, and debt limit negotiations.
Second, the speaker cautions against treating midterms as direct signals for the 2028 presidential election. Historical analysis of six midterm-to-presidential cycles since 1994 shows the top-ranked issue changed in five cases, and the ultimately decisive presidential issue was visible at the midterm in only two cases. However, midterms reveal emerging policy fault lines, particularly around fiscal and Social Security debates, individual tax policy, data center restrictions, and healthcare. The useful signal lies in which policy versions gain voter and party traction.
Third, regarding AI policy, the speaker separates data center policy from broad AI regulation. Data center policy matters at midterms because key levers—permitting, siting, grid interconnection, electricity rates, and tax incentives—sit at state and local levels, making governorships and state legislatures more impactful than Congress. The base case predicts conditional AI infrastructure build-out concentrating in locations addressing electricity, infrastructure, water, and community concerns. Broader AI safety regulation is less dependent on government configuration, as comprehensive federal legislation is unlikely without a high-salience incident.
Finally, the speaker identifies market implications as primarily micro rather than macro. For equities, congressional composition affects individual sectors, particularly consumer, healthcare, and AI-related sectors. For rates, the key question is whether election outcomes materially change expected deficits, with unified Republican control preserving reconciliation tools while divided government narrows legislative scope. For currency markets, transmission runs through U.S. yields and growth outlook rather than the election itself.
About this episode
<p>As investors look toward the U.S. midterm elections, the biggest question is what could change. Our Head of U.S. Public Policy Research Ariana Salvatore outlines the signals worth watching. </p><p>Read more <a href="https://www.morganstanley.com/insights?cid=mg-SM_CORP-insights-17607" rel="noopener noreferrer" target="_blank">insights</a> from Morgan Stanley.</p><p><br /></p><p>----- Transcript -----</p><p> </p><p><strong>Ariana Salvatore:</strong> Welcome to Thoughts on the Market. I'm Ariana Salvatore, Head of U.S. Public Policy Research at Morgan Stanley. </p><p>Today, I'll be talking about the upcoming 2026 midterm elections. </p><p>It's Wednesday, September 30th, at 10am in New York. </p><p>As the elections inch closer, investors are increasingly asking about potential ramifications. We just put out a deep dive covering our expectations, and we arrive at four key takeaways. </p><p>The first, midterms are unlikely to change the core executive-led policy agenda. As we've been noting for some time, a lot of the policy uncertainty that markets have dealt with since the beginning of 2025 has actually come from the executive branch rather than Congress. </p><p>Tariffs, trade policy, deregulation, immigration, and export controls are all variables that are going to remain within the White House's authority. So even if control of Congress changes, we don't think investors should assume that those parts of the policy agenda simply go away. Where Congress actually matters more is on fiscal policy. But even there, the range of outcomes is relatively narrow. </p><p>The main differences revolve around the timing of scheduled SNAP and Medicaid cuts, defense spending, and how future government funding and debt limit negotiations evolve. </p><p>So, that's our first takeaway. Midterms can change the mechanics of governing, but probably not the broader direction of the executive agenda. That means policy uncertainty, at least across those vectors I mentioned, is likely to stay high. </p><p>Takeaway number two, we'd be careful about treating the midterms as a direct signal for the 2028 presidential election. Historically, what we see is the issues that dominate a midterm don't necessarily translate to the next presidential race. </p><p>Looking at the six midterm-to-presidential cycles since 1994, the top-ranked issue changed in five of them. And the issue that ultimately proved decisive in the presidential election was actually already visible at the midterm in only two of the six cases. What elections can tell us, however, is where some of the policy fault lines are beginning to form. </p><p>We're watching four debates in particular in that context: the fiscal and Social Security debate, individual tax landscape, restrictions on data center development, and healthcare. In our view, across those variables, the useful signal isn't simply which party wins more seats. It's which versions of these policies are beginning to gain traction with voters and within the parties themselves. </p><p>That actually brings us to takeaway number three. AI is one area where the midterms could matter, but mainly through data center policy rather than broad AI regulation. </p><p>We think it's important to separate those two issues. So first, on data centers, we do see midterms as a catalyst. And that's because many of the most important policy levers sit at the state and local level: permitting, siting, grid interconnection, large load electricity rates, and tax incentives. So that means that the governorships, utility commissions, and state legislatures can actually have a much more immediate effect on the pace and the location of the build-out than Congress itself. </p><p>In that vein, our base case remains a conditional build-out, meaning the expected level of AI CapEx can continue. But likely it's going to increasingly concentrate in locations where developers can address concerns around things like electricity costs, infrastructure, water, and community impacts. </p><p>Broader AI safety regulation is different. Here, we think government configuration actually matters less, and that's because we see comprehensive federal legislation as pretty unlikely in the near term, absent a high salience event or incident. So congressional control is not necessarily the key driver. </p><p>And finally, takeaway number four: for markets, we see more micro implications than macro ones. For equities, the composition and cohesion of the congressional majority can matter for individual sectors. Congress that's able to negotiate changes to scheduled SNAP or Medicaid cuts, for example, could have implications for consumer and healthcare companies. </p><p>AI related sectors could also respond to changes in expectations and sentiment pertaining to data center restrictions. For rates, the key question is whether the election produces fiscal outcomes that materially change expected deficits. </p><p>United Republican control would be the only outcome preserving reconciliation as a potential vehicle. Divided government, conversely, would narrow the scope for new legislation and put more emphasis on funding and debt limit negotiations. And for the dollar, our strategists see the transmission mechanism running primarily through U.S. yields and the growth outlook rather than the election itself. </p><p>So, bottom line, we don't think the 2026 midterms are likely to produce a wholesale change in the policy or macro backdrop. But there will be important lessons to pick up along the way. </p><p>Thanks for listening. If you enjoy the show, please leave us a review wherever you listen. And share Thoughts on the Market with a friend or colleague today.</p>
Key Insights
- Policy uncertainty from tariffs, trade policy, deregulation, immigration, and export controls will likely persist after the midterms because these powers remain within executive authority regardless of congressional control shifts.
- Historical analysis shows midterm elections are poor predictors of presidential election outcomes, with the top-ranked issue changing in five of six cycles since 1994, suggesting midterms signal emerging policy fault lines rather than definitive electoral trends.
- Data center regulation impacts are primarily determined by state and local policy mechanisms like permitting and electricity rates rather than federal legislation, making governorships and state legislatures more consequential than Congress for AI infrastructure deployment.
Topics
Transcript
Welcome to Thoughts on the Market. I'm Ariana Salvatore, head of U.S. public policy research at Morgan Stanley. Today, I'll be talking about the upcoming 2026 midterm elections. It's Wednesday, September 30th at 10 a.m. in New York. As the elections inch closer, investors are increasingly asking about potential ramifications. We just put out a deep dive covering our expectations, and we arrive at four key takeaways. The first, midterms are unlikely to change the core executive-led policy agenda. As we've been noting for some time, a lot of the policy uncertainty that markets have dealt with since the beginning of 2025 has actually come from the executive branch rather than Congress. Tariffs, trade policy, deregulation, immigration, and export controls…
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