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US southern border crackdown and mass deportations
Since Jan 2025· Issue or flashpoint
FactTreaties, membership, measured data, events.
Since January 2025, near-closure of the southern border to asylum seekers and a nationwide push to detain and deport immigrants.
See it on the Geopolitics map →The picture
On day one Trump declared a border emergency, sent troops, ended the CBP One appointment app and largely shut asylum. Border Patrol arrests at the southern border fell below 10,000 a month, the lowest in decades, from a peak near 250,000 in December 2023. Inside the country, ICE detention passed a record 60,000, and deportation flights went to Mexico, El Salvador and third countries. The July 2025 budget law added about $170 billion for enforcement. City raids drew protests and lawsuits.
Why it matters
Supporters credit it with restoring order; critics cite due-process and humanitarian costs. For Mexico it means returnees, pressure to police migrants and a new 1% US tax on cash remittances.
Key facts and numbers
CBP monthly enforcement statistics, ICE detention data, DHS releases (it claimed over 600,000 removals in the first year; independent counts are lower) and federal court rulings.
What to watch
Outlook: long-run effects on US labor supply in farming, construction and care work, and how courts rule on deportation powers such as the Alien Enemies Act.
Connections (2)
▸US southern border crackdown and mass deportations pressured MexicoFact
The relationship
The crackdown pushed costs onto Mexico: it accepted returns of non-Mexican migrants, absorbed migrants stranded by the asylum shutdown, deployed 10,000 National Guard troops to the border in February 2025 under tariff threats, and faces lower remittances, which hit a record of about $65 billion in 2024.
Since when and why
Along the 3,145-km border and in talks with Mexico City from January 2025; Sheinbaum's troop deal with Trump came on February 3, 2025.
How we know
Mexican government announcements, CBP data on falling crossings, Banco de México remittance figures and the 1% remittance tax in the July 2025 US budget law.
What to watch
How many deportees settle in Mexico versus try again, and whether migrant flows shifted to other routes or simply stopped, is still unclear.
▸US southern border crackdown and mass deportations is a flashpoint in Migration and border politicsFact
The relationship
The US crackdown is one of the hemisphere's biggest migration stories: near-closure of the southern border to asylum, record detention and deportations, and pressure on Mexico and Central American states to hold migrants. It reversed the record arrivals of 2021–24, and some migrants turned back south or sought other destinations.
Since when and why
The US–Mexico border and US cities, since January 20, 2025; the earlier peak came under Biden, with about 250,000 southern-border arrests in December 2023.
How we know
CBP monthly statistics show border arrests at multi-decade lows; ICE detention data and court filings document the interior push. Removal totals are disputed.
What to watch
Whether low crossings outlast the crackdown, and its long-run effects on labor-short industries such as construction, farming and elder care.