Promises about tariffs are often phrased as though customs revenue can pay for any new programme. A proposed $5,000 check for adults is a useful test of scale.

FactCheck.org estimated that paying roughly 245 million eligible adults would cost about $1.2 trillion, far beyond available annual net tariff collections.

A government can choose to borrow or raise other funds. It cannot reasonably claim that the cited tariff revenue alone already covers that bill.