The prediction concerns what actual federal revenue from U.S. tariffs will total over the decade following 2025 (roughly 2026–2035) under Trump-era policy. As of the current date (November 30, 2025), only a small fraction of that 10‑year window has elapsed, so it is impossible to determine whether realized tariff revenues will end up around $4 trillion or not.

Sacks’ quote describes a Congressional Budget Office (CBO) projection (i.e., a forecast) of tariff revenues, not an outcome that can already be checked against final numbers. CBO baseline projections are forward‑looking estimates and are routinely revised; whether those projections ultimately prove accurate can only be evaluated after the full period has passed and actual collections are known, which will not be until around 2036 when data for the full 10‑year span are available.

Because:

• The relevant period is ~10 years after 2025.
• We are only in late 2025.
• Final tariff revenue data for that decade do not yet exist.

The correctness of the prediction cannot yet be evaluated. Therefore the appropriate status is “inconclusive (too early)”.