A little-watched economic metric is flashing red for Republicans this fall, according to Washington Monthly's Bill Scher, and its history suggests the party could be staring down one of the worst midterm results in modern memory.
The indicator is per capita real disposable income, essentially how much spending power Americans have left after taxes and inflation. Political scientist Seth Masket has tracked its correlation with midterm outcomes for years, and the latest reading is ugly: the figure actually shrank by 0.4 percent quarter-over-quarter this spring, a stretch that coincided directly with Trump's decision to strike Iran and the resulting spike in oil prices. Looking at the broader window from the third quarter of 2025 through the second quarter of this year, the figure is also negative, at -0.5 percent.
That kind of decline is historically rare. Out of the 20 midterm elections held since 1950, income has actually shrunk during the comparable measurement window in only four of them, and the results in those years were brutal for the party in power. Two of those elections, in 1958 and 1974, produced the two biggest Democratic wave elections of the past 75 years, each netting the party 48 House seats.
Scher notes the exception is 2022, when inflation cratered household income yet Democrats only lost nine House seats, a result widely attributed to Trump-backed election-denying candidates and backlash over the Supreme Court overturning Roe v. Wade. Even then, Scher points out the inflation trend was already improving by the following quarter, unlike the current trajectory.
Republicans do have real advantages working against a wave: a massive advertising campaign painting Democratic candidates as socialists, and Senate polling margins that remain within typical polling error. But Cook Political Report's Amy Walter recently found even that spending isn't landing yet.
"Democratic and Republican operatives we spoke with this week told us that, at this point, attack ads against Democrats were not yet 'moving the needle' in the races they were tracking," Walter said.
Scher argues the deeper problem for Republicans is that voters angry about their shrinking paychecks aren't easily distracted by other campaign narratives, whether that's tying Democrats to controversial online personalities or attacking their records on social issues, because the economic pain traces directly back to decisions Trump made. On that front, the administration has piled on rather than eased up: a fresh trade fight with Canada, no real progress reopening the Strait of Hormuz as promised, and continued fallout from the worsening Saudi-Yemen conflict squeezing global oil supplies even further.
Trump's approval rating currently sits below 40 percent, worse than it was heading into the 2018 midterms, when Democrats netted 41 House seats. And unlike in past cycles, few vulnerable Republicans have dared publicly distance themselves from Trump, given his track record of attacking party members who criticize him, leaving most GOP candidates tied directly to a president whose economic record voters are actively punishing at the polls.
