Trump threatens to double tariffs on Mexico over migrant caravans; Sheinbaum says none has reached the border

President Donald Trump said Thursday that tariffs on Mexico will be "IMMEDIATELY DOUBLED" unless Mexico stops migrant caravans heading toward the US border, according to FreightWaves, which quoted his Truth Social post. Reuters, Bloomberg and Forbes all ran the story. Mexican President Claudia Sheinbaum answered the same day that no caravan has reached the northern border since Trump returned to office in January 2025, as reported by ABC News and the Washington Post.

What we do not know

FreightWaves reports Trump did not say which tariffs would double, whether existing exemptions stay, or when anything would take effect. That matters, because the answer changes by product. Per FreightWaves, current US tariffs on Mexican goods generally include 25% on most items outside USMCA preferences, 0% on qualifying USMCA goods, 25% on Mexican-made autos and 50% on steel and aluminum. Doubling any of those is very different from doubling none.

The disputed facts

Sheinbaum acknowledged two caravans are moving through southern Mexico and said authorities are managing them with information and humanitarian aid. Reuters put the number at roughly 1,500 migrants; the Spanish agency EFE said the group started with about 2,000, according to FreightWaves. These are different counts from different outlets and neither is official.

Why the timing matters

The threat lands while Washington and Mexico City are negotiating tariff reductions, and FreightWaves, citing Reuters, notes Trump decided in July not to extend the USMCA framework. FreightWaves also reports September two-way trade of $96.34 billion, with Laredo handling $38.9 billion of it.

Who it would hit

• Importers of non-USMCA goods are the group exposed to the 25% tier. Doubling it would be a straight cost increase on every invoice, or a scramble to prove USMCA origin.
• Parts buyers and manufacturers in autos, industrial equipment, electronics and metals rely on trucks crossing the border several times before a product is finished, per FreightWaves.
• Carriers and brokers would feel any drop in crossing volume. We hold 24,679 independent trucking companies on file.

The honest read for an importer today: there is no order to price against. Reasonable homework is checking which of your lines are USMCA-qualified and what your contracts say about tariff pass-through, then waiting for a written notice rather than a post.

Sources: FreightWaves; CNBC for the day's wider policy context; headlines from Reuters, Bloomberg, Forbes, ABC News and the Washington Post. This is market information, not investment advice.