A recent Reuters/Ipsos poll conducted from August 28-31 reveals that 47% of registered voters rank the cost of living as the decisive factor in their midterm election vote, while 71% of American adults disapprove of how Donald Trump is handling affordability concerns. The same survey shows only 33% approve of his overall job performance, with high energy costs and resurgent inflation weighing heavily on sentiment. While preliminary polling cannot directly translate into seat counts or win probabilities, these numbers clearly signal that energy prices, electricity tariffs, and household consumption burdens have become unavoidable policy issues for financial markets to monitor.

Congressional control and its implications for financial markets first surface through legislation, government backing for large-scale infrastructure projects, investigations, and personnel appointments. The Republican Party maintaining its Senate majority and Greg Abbott securing re-election as Texas governor are especially pivotal for global AI computing infrastructure investment prospects and core computing asset valuations. However, midterm elections do not alter the presidency; even if party control of Congress shifts, major tax law changes still require passing through legislative procedures, with the president retaining veto power and any override needing a two-thirds majority in both chambers. Therefore, changes in congressional control do not automatically translate into an immediate reversal of the business-friendly Trump tax cuts, comprehensive regulatory tightening, or a halt to trillion-dollar AI data center investment initiatives due to partisan pressure.

Data center construction constraints have already taken concrete form. On August 3, Texas Governor Abbott ordered a comprehensive review of data centers proceeding through the state's grid operator's interconnection process, directing that no projects advance until the review concludes. State authorities disclosed that interconnection applications involve over 474 gigawatts of new electricity demand, with roughly 90% attributed to data centers. These figures represent application volumes, not operational loads or confirmed orders. The review scope covers electricity use, water consumption, fiscal incentives, and community impact, demonstrating how bipartisan cost-of-living disputes tied to the midterm elections can filter through interconnection conditions and project timelines into AI infrastructure investment.

Bank of America senior strategist Michael Hartnett, dubbed the "most accurate Wall Street forecaster," leads a team whose research explicitly incorporates U.S. policy conditions and funding costs into AI computing theme valuation analysis: if Republicans fail to secure the Senate and lose both chambers, extended project approvals would delay computing capacity deployment and actual AI revenue generation and profit formation; Democratic control of Congress would raise financing rates, increasing data center construction costs while reducing the present value of long-term cash flows. Under this valuation framework, global semiconductor firms, data center power chain equipment makers, and "new cloud" AI computing rental players inevitably face negative expectation impacts, ultimately validated through actual orders, deployment pace, capital expenditure, and free cash flow. Selling pressure may first manifest as valuation contraction for AI-related stocks; only if approval and financing constraints push cloud providers to delay construction and equipment purchases would the shock propagate along the supply chain to supplier orders, revenue, and operator cash flows, turning policy concerns into earnings pressure.

Hartnett designates Democratic control of both congressional chambers as a critical stress scenario: rising market concerns over tax hikes, stricter regulation, and restricted AI buildout pressure both earnings expectations and valuations simultaneously. He projects the S&P 500 could fall more than 10%, the dollar weakening, and bond yields declining under this asset price combination. Conversely, he views Republican control of both chambers as a risk appetite expansion scenario, while describing Republican Senate control with a Democratic House as a "gridlock Goldilocks" environment moderately favorable to risk assets.

Why the Republican campaign faces warning signs as the midterm race enters its final stretch

The informal kickoff of the final campaign phase arrives with Monday's Labor Day, and with just two months until the November midterm elections, Donald Trump's exceptionally low approval ratings are jeopardizing Republican chances of maintaining their narrow congressional majorities. Election experts note that midterms function first and foremost as a referendum on the White House occupant. This dynamic is especially pronounced in the Trump era: he has dominated American politics for nearly a decade, yet may confront formidable political headwinds in his final two years in office. Should Democrats capture the House majority—currently considered highly likely—they could launch politically damaging investigations into the administration while forcing the White House to compromise on most legislative matters. Democratic leaders have already pledged to probe what they characterize as Trump's corruption and misconduct.

Analysts describe the Senate control battle as too close to call, but a Democratic majority there would enable the party to block numerous presidential appointments, including Supreme Court nominees should a vacancy arise. While Democrats face their own challenges, including ideological divisions between centrists and the left wing, Trump's unpopularity has become a Republican liability. The latest Reuters/Ipsos polling shows Trump's approval at historic lows, with overwhelming majorities dissatisfied over the Iran war situation and economic conditions. His disapproval-approval differential is nearly double what it was in 2018, when Democrats gained 40 House seats. Democratic voters exhibit higher enthusiasm than Republican counterparts, corroborated by strong Democratic turnout in recent special elections and primaries. Registered voters favor Democratic candidates over Republicans by five percentage points.

Historical patterns also favor Democrats. Since 1938, the president's party has lost House seats in every midterm election except two. "I think there's a widespread sense that the president hasn't focused on what voters care about most, which is whether living costs are affordable," said Jessica Taylor, Senate elections analyst at the Cook Political Report. "If you want to express dissatisfaction with the president, the only way to do it during midterms is to vote against his party."

Democrats nevertheless confront their own hurdles. In a series of party primaries, progressive candidates actively challenging the establishment, including democratic socialists, unexpectedly defeated establishment-backed moderates, raising questions about party leadership, campaign messaging, and internal cohesion. Republicans retain several structural advantages. They currently hold a narrow 218-214 edge in the House. Following an unprecedented redistricting battle mid-decade, the party could net as many as ten additional seats purely from redrawn districts. All 435 House seats and roughly one-third of the 100 Senate seats are up for election on November 3.

Meanwhile, the Senate electoral map tilts less favorably for Democrats. Even if Democrats win the competitive races in Georgia, Maine, Michigan, and North Carolina, they would still need to capture at least two of four additional states: Alaska, Iowa, Ohio, and Texas. Trump won all four by double-digit margins in 2024. Though Democratic candidates nationally outraise their Republican opponents, the Republican national party committees and supportive super PACs far exceed their Democratic counterparts in fundraising. Trump's own super PAC holds $400 million in campaign funds. "Democrats will win the national popular vote; there's no question about that," said Democratic strategist Jesse Ferguson. "The question is whether these structural obstacles prevent them from winning the Senate or House majorities."

Under Trump, Republicans have sought to paint Democrats as socialists or even communists, citing candidates like Michigan progressive Democratic Senate nominee Abdul El-Sayed. "This is the year of showing America the contrast," said House Speaker Mike Johnson, echoing the Republican "Contract with America" playbook from the 1994 midterms. "It's a contrast between common sense and madness." Whether these attacks resonate amid widespread dissatisfaction over cost-of-living burdens remains uncertain. Several Senate battleground states may be experiencing particularly pronounced effects of Trump's policies. Iowa farmers face higher energy costs and the impact of Trump's tariffs; Texas cattle ranchers remain angered by his decision to lift foreign beef import taxes. Michigan and Maine could be affected by escalating trade tensions with neighbor Canada and largest trading partner China.

Republicans will hold an unusual midterm convention this week. Party officials hope the event re-energizes the base while reminding voters of Trump's tax cuts and other achievements. However, the convention will center heavily on Trump, who speaks at both evening sessions—a focus that could backfire by tightly binding vulnerable Republican candidates to the president. While cost-of-living burdens and war dominate priorities, many campaigns will also focus on healthcare, Israel's war in Gaza, and significant community debates over data centers' extreme electricity and water consumption.

Eight weeks remain until election day. Given Trump's unique ability to shift political conversation virtually daily, that period is substantial. Yet analysts suggest Republicans may already be too late to change voter perceptions of the economy. "Can Republicans further elevate voter enthusiasm?" asked Kyle Kondik, election expert at the University of Virginia's Center for Politics. "The alternative is that support doesn't recover, and Trump's approval slide becomes irreversible. To me, that's the biggest question of this election."

BofA's midterm trading framework: how policy scenarios affect valuations and sentiment while real cash flows and revenue generation test AI returns

Hartnett's BofA strategist team, in an August 14 research note, linked "Republicans holding the Senate and Abbott retaining the Texas governorship" to what they term a "bubbly 2027" scenario, proposing a stress case of U.S. stocks falling more than 10% under the opposite combination. BofA stated: "If Trump can hold the Senate and Abbott can hold Texas, expect stocks—especially AI-related semiconductor shares—to rally substantially, pushing the market toward a potentially bubble-tinged 2027." However, should Democrats take the Senate while defeating Abbott, U.S. equities would face a decline exceeding 10%, with the dollar and bond yields also dropping significantly by year-end.

The midterm election functions more as a "valuation and risk premium switch" for the global semiconductor bull market than as the engine determining AI demand itself. In the BofA strategists' view, elections can shift policy expectations and valuations, while token orders and free cash flow serve as the mechanism testing actual returns on AI computing resource investment and capital expenditure sustainability. Hartnett and his team's strategy and investment logic are clear: if Republicans hold the Senate and Greg Abbott holds Texas, markets interpret this as a continued friendly environment for AI data centers, energy infrastructure, taxes, and business regulation—particularly meaningful given Texas already hosts 335 data centers with 247 planned projects. This effectively reduces tail risk that "electricity prices, grid pressure, and voter backlash ultimately force AI CapEx to be politically constrained."

BofA's Friday research report outlines three congressional control combinations: Democratic control of both chambers corresponds to risk asset pressure with dollar and bond yield declines; Republican control of both chambers corresponds to risk appetite expansion; and Republican Senate control with a Democratic House is described as a "gridlock Goldilocks" scenario moderately favorable for risk assets. BofA indicates a Democratic sweep in the midterms would send U.S. stocks down more than 10%, the dollar weakening, bond yields falling, and the AI bubble facing rupture risk. Hartnett's team characterizes a "Democratic congressional sweep" as one of the market's largest tail risks, currently almost entirely unpriced by investors. Conversely, an unexpected Republican hold on both chambers would mean full risk appetite recovery, a green light for the AI bubble, and a resurgence of dollar and American market exceptionalism narratives. The most probable outcome—"Republican Senate, Democratic House"—corresponds to the most moderate and market-friendly risk environment: "gridlock is Goldilocks." BofA cites its recent fund manager survey showing 47% of respondents expect "Republican Senate, Democratic House," 23% anticipate a Democratic sweep, and only 9% expect Republicans to maintain control of both chambers. Republicans currently hold a 53-47 advantage in the Senate and a 218-212 edge in the House.