Government corruption has vaulted to the second-most important issue for midterm voters, trailing only the cost of living, according to a Harris poll of 2,065 US adults conducted October 22-24, 2026, for the Guardian. Nearly nine in ten Americans say elected officials routinely put personal or donor financial interests ahead of the public's. Three-quarters say officials care more about enriching themselves than improving the economy for ordinary people. The numbers are not close. The backdrop makes the polling unsurprising. Trump demolished the East Wing to build a $400m ballroom funded largely by private donors including Apple and Nvidia. His family's cryptocurrency business has generated $1bn since he returned to office. He accepted a $400m private jet from Qatar's royal family. Elon Musk, after donating nearly $300m to Trump's 2024 campaign, was handed the power to gut the federal workforce — now down more than 420,000 employees. The transactional nature of these arrangements is not hidden; it is the brand. Voters assign blame asymmetrically. Forty percent — including 29% of Republicans — say the GOP has the bigger corruption problem. Only 21% point to Democrats. Among independents, the ratio is 34% Republican to 13% Democrat, with 42% saying both parties share it equally. The Republican corruption premium among independents is the number that should keep strategists awake, because these are the voters who decide swing races. The economy underneath these perceptions is bifurcated in a way that makes the corruption narrative stick. The S&P 500 and Nasdaq hit record highs in early October 2026, powered by AI spending. But the top 1% of Americans own half the stock market while the bottom 50% own just over 1%. When the gains accrue to a sliver and the cost of living grinds everyone else, any visible self-dealing by officials becomes an accelerant. The campaign finance pipeline amplifies the feedback loop. Post-Citizens United, each cycle sets new records. The 2026 midterms have already cost $11.2bn in ads — the most ever for a midterm. Just 40 donors have contributed $2.5bn. Bloomberg dropped $80m in last-minute Democratic funding; Trump pledged $400m to Republicans. These are not abstract numbers. Seventy-eight percent of voters agree that officials care more about enriching themselves than helping people like them. The money trail is the evidence. Voters are converting this anger into policy preferences that cut across party lines. The top demand — chosen by 32% — is limiting corporate and lobbyist influence on government decisions. Tariff removal came second at 29%, followed by price controls at 24%. California's ballot measure for a one-time 5% billionaire wealth tax has drawn $340m in opposition spending from tech billionaires, roughly $1m a day. Fifty percent of all voters and 56% of independents say billionaires don't pay their fair share. The structural question is whether this discontent translates into institutional reform or simply becomes another input into the fundraising machine. United Airlines CEO Scott Kirby endorsed a national wealth tax and near-100% inheritance taxes — a data point that either signals a crack in elite consensus or a CEO reading a room. The midterms will test whether corruption as an issue has enough salience to override partisan gravity, or whether the $11.2bn in ads drowns out the signal voters say they're sending.