Presidential performance / Prices

How did inflation and the price level change?

Compare inflation and consumer prices across equal completed four-year calendar windows, with the inherited trend visible and the current term shown separately.

Line chart of year-over-year CPI-U inflation from January 2025 to August 2026, with a gap at October 2025. August 2026 inflation is approximately 3.4 percent.

Monthly year-over-year inflation, using not-seasonally-adjusted CPI-U. October 2025 is unavailable and remains a visible gap.

What this comparison establishes

Slower inflation does not necessarily mean lower prices.

Year-over-year inflation shows how quickly prices changed; the indexed price level shows their cumulative change from the previous December. Compare both measures over the same number of months. These observations do not isolate a president’s policy effects.

BLS / CONSUMER PRICESData through Aug 2026 · dated edition

Donald Trump II20 months elapsed · incomplete window

Baseline: Dec 2024 = $100
Viewing: Aug 2026 · month 20

01 / THE RATE OF CHANGE

How fast are prices rising?

+3.4%

Compared with the same month one year earlier

Donald Trump II: year-over-year inflation. Shaded area shows the two preceding calendar years. Horizontal axis: months from the preceding December, through month 48. Missing values break the line. Exact values are available in the monthly data table.0%4%8%BeforeBase2448

Months from baseline · shaded area = inherited context

02 / THE ACCUMULATED CHANGE

What does a baseline $100 become?

$106.14

+6.1% since Dec 2024 · CPI equivalent

Donald Trump II: CPI-equivalent cost of a baseline $100. Shaded area shows the two preceding calendar years. Horizontal axis: months from the preceding December, through month 48. Missing values break the line. Exact values are available in the monthly data table.$90$100$110BeforeBase2448

Months from baseline · shaded area = inherited context

Slower inflation does not necessarily mean lower prices.

A lower positive annual rate means prices are still above their level a year earlier. The $100 illustration tracks the national CPI price level; it is not a household receipt or a complete cost-of-living measure.

October 2025 has no published value because of the lapse in federal appropriations. The line breaks at that month; no value is estimated. Months after Aug 2026 are beyond this edition’s data.

Calendar windows include the January handover. Inherited policies, Congress, the Federal Reserve and external events also affect prices. These observations do not isolate a president’s causal contribution. The two charts use different vertical units; scales stay fixed during replay and adjust when the selected window or context changes.

THE SAME 48 MONTHS

Compare completed windows.

Each row starts at $100 in the preceding December and ends four Decembers later. This is accumulated CPI change, not an annual rate or a presidential score.

Twelve completed 48-month CPI windows, ordered chronologically
President / windowBaseline → endpoint$100 becomesTotal change
Dec 1976 → Dec 1980$148.28+48.3%
Dec 1980 → Dec 1984$122.02+22.0%
Dec 1984 → Dec 1988$114.43+14.4%
Dec 1988 → Dec 1992$117.76+17.8%
Dec 1992 → Dec 1996$111.77+11.8%
Dec 1996 → Dec 2000$109.71+9.7%
Dec 2000 → Dec 2004$109.37+9.4%
Dec 2004 → Dec 2008$110.47+10.5%
Dec 2008 → Dec 2012$109.22+9.2%
Dec 2012 → Dec 2016$105.15+5.2%
Dec 2016 → Dec 2020$107.89+7.9%
Dec 2020 → Dec 2024$121.17+21.2%
IN PROGRESS / SEPARATE WINDOW

Trump II · 20 months

Dec 2024 → Aug 2026. This shorter window is not compared as a completed term.

Monthly values & calculation method

Series CUUR0000SA0: CPI-U, all items, U.S. city average, not seasonally adjusted (1982–84 = 100). YoY = (CPI ÷ CPI 12 months earlier − 1) × 100. CPI equivalent = $100 × CPI ÷ the preceding December’s CPI. Calculations use the published index values before display rounding.

Source release: September 11, 2026. Extract retrieved September 30, 2026. This dated edition does not update automatically. “Unavailable” is missing data, never zero. The inherited-context values use the same December baseline.

Download the frozen monthly CPI extract (CSV) ↓
Donald Trump II · inherited context and selected calendar window
MonthCPIAnnual change$100 equivalent
Jan 2023Before window299.170+6.4%$94.79
Feb 2023Before window300.840+6.0%$95.32
Mar 2023Before window301.836+5.0%$95.64
Apr 2023Before window303.363+4.9%$96.12
May 2023Before window304.127+4.0%$96.36
Jun 2023Before window305.109+3.0%$96.67
Jul 2023Before window305.691+3.2%$96.86
Aug 2023Before window307.026+3.7%$97.28
Sep 2023Before window307.789+3.7%$97.52
Oct 2023Before window307.671+3.2%$97.49
Nov 2023Before window307.051+3.1%$97.29
Dec 2023Before window306.746+3.4%$97.19
Jan 2024Before window308.417+3.1%$97.72
Feb 2024Before window310.326+3.2%$98.33
Mar 2024Before window312.332+3.5%$98.96
Apr 2024Before window313.548+3.4%$99.35
May 2024Before window314.069+3.3%$99.51
Jun 2024Before window314.175+3.0%$99.55
Jul 2024Before window314.540+2.9%$99.66
Aug 2024Before window314.796+2.5%$99.74
Sep 2024Before window315.301+2.4%$99.90
Oct 2024Before window315.664+2.6%$100.02
Nov 2024Before window315.493+2.7%$99.96
Dec 2024Baseline315.605+2.9%$100.00
Jan 2025317.671+3.0%$100.65
Feb 2025319.082+2.8%$101.10
Mar 2025319.799+2.4%$101.33
Apr 2025320.795+2.3%$101.64
May 2025321.465+2.4%$101.86
Jun 2025322.561+2.7%$102.20
Jul 2025323.048+2.7%$102.36
Aug 2025323.976+2.9%$102.65
Sep 2025324.800+3.0%$102.91
Oct 2025UnavailableUnavailableUnavailable
Nov 2025324.122+2.7%$102.70
Dec 2025324.054+2.7%$102.68
Jan 2026325.252+2.4%$103.06
Feb 2026326.785+2.4%$103.54
Mar 2026330.213+3.3%$104.63
Apr 2026333.020+3.8%$105.52
May 2026335.123+4.2%$106.18
Jun 2026333.952+3.5%$105.81
Jul 2026333.918+3.4%$105.80
Aug 2026334.980+3.4%$106.14

Read the measure correctly.

BLS CPI-U, all items, U.S. city average, not seasonally adjusted (CUUR0000SA0; 1982–84 = 100). The previous December is rebased to $100 for each window; this illustrates average price change, not an individual shopping bill. October 2025 remains a gap, with no interpolation. Latest release: September 11, 2026; data retrieved September 30, 2026.

See the CPI method for the baseline formulas, equal-window rules and missing-month treatment.

Official sourceBLS: Consumer Price Index, all items (opens in a new tab)Retrieved September 30, 2026 · latest observation: August 2026 · CUUR0000SA0: CPI-U, all items, U.S. city average, not seasonally adjusted; 1982–84 = 100. Monthly observations; October 2025 is unavailable and is not interpolated.
Official sourceBLS: August 2026 Consumer Price Index release (opens in a new tab)September 11, 2026 · Dated release for the latest month in this comparison. The comparison uses the not-seasonally-adjusted all-items CPI-U series, not the seasonally adjusted monthly headline.
Official sourceBLS: Consumer Price Index questions and answers (opens in a new tab)Retrieved September 30, 2026 · What the CPI measures, population coverage and the distinction between a price index and an individual household’s cost of living.