Finding 2 — The midterm amplifier
Presidential vs midterm: turnout by cohort
The amplifier effect
The second mile, by election type
The amplifier above measures who turns out among all citizens. The harder question is what happens to people who already cleared the registration hurdle: among registered citizens aged 18-32, what share didn't vote — and how much does that change between presidential and midterm years? For the two groups this report prioritizes, the midterm penalty roughly doubles the registered-non-voter rate.
VOTED=2) or as registered (VOREG). Presidential cycles are years divisible by 4; midterm cycles are the even years between. Unweighted n is the registered cohort in each cell; standard errors are generalized-variance-bounded (Census Nov 2022 parameters, Tables 8-11)[12]. CPS turnout is self-reported and over-reports relative to voter-file validation by approximately 3-8 points[2][11] (see methodology); the presidential-vs-midterm contrast within a group is the reliable signal here, not the absolute level. Hover any ⓘ for full provenance.
Senior turnout is stable; youth turnout is volatile
Youth turnout varies from roughly 19% (midterm low) to 52% (presidential high) across the series — a 33-point range depending on what's on the ballot. Senior turnout varies only from 68% to 76% — an 8-point range. Youth participation is highly responsive to election salience; senior participation is mostly not.
"I don't hear much about them"
A consistent answer young respondents give about midterm cycles, when asked directly, is that they don't hear much about them. That tracks what the broader attention environment looks like: national broadcast and cable coverage of presidential races outpaces midterm-cycle coverage by roughly an order of magnitude, and there is no comparable national news cycle doing the visibility lifting in non-presidential years. The midterm ballot has to compete for attention against everything else happening in an off-presidential year, often without a single national race to anchor coverage. This is not a personal-attention failure — it is an attention-environment failure. Interventions that assume young voters will independently track a midterm race their own information environment is barely covering tend to underperform; interventions that bring the ballot to the voter (mail ballots, ballot-tracking communications, peer-to-peer reminders close to Election Day) consistently outperform.[9][11]
What this page establishes
- Midterm youth turnout is consistently 15-20 points below presidential youth turnout. Not a single exception in the dataset.
- Senior turnout moves less than 10 points across the same range of cycles. Habit-formed participation is stable.
- The amplifier is a youth-mobilization failure, not a senior-surge phenomenon. Interventions that only activate during presidential cycles leave the midterm gap intact.
So what
For Secretaries of State. The midterm electorate is substantially less representative of the citizen voting-age population than the presidential electorate. Youth voices reach policy primarily through cycles where the presidency is contested.
For foundation officers. Cyclical get-out-the-vote (GOTV) that concentrates on presidential years misses where the gap is largest. Interventions with multi-cycle effects — policy reform, pre-registration, administrative improvements — do not collapse between cycles, and the midterm amplifier is where they show their value.[13][14] See Recommendations.
For the public. When the presidency isn't on the ballot, for about every three Americans 65+ who vote, only one American 18-29 does. Policy that flows from midterm electorates can reflect that imbalance.
v_midterm_amplifier produces this same quantity from the state-year panel.