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We will build a great, great wall on our southern border, and I will have Mexico pay for that wall. Mark my words.

Donald Trump

Presidential campaign announcement speech, June 2015 · Checked on 26 February 2026
We will build a great, great wall on our southern border, and I will have Mexico pay for that wall. Mark my words.

Analysis

During his 2016 campaign and presidency (2017–2021), Trump consistently asserted Mexico would fund the wall, but no such payment was secured. Instead, U.S. taxpayers funded limited barrier construction via congressional appropriations (e.g., $15 billion diverted from military budgets under emergency declarations). Mexico’s government repeatedly rejected the idea, with then-President Peña Nieto and later López Obrador explicitly stating they would not pay. Trump later shifted to indirect claims (e.g., USMCA trade deal benefits), but no mechanism for Mexican payment materialized.

Background

The border wall was a central 2016 campaign promise, with Trump framing it as a solution to illegal immigration and drug trafficking. Construction faced legal challenges, environmental concerns, and limited effectiveness studies, while Mexico’s refusal to pay became a symbolic point of contention. By 2021, only ~450 miles of barriers were built (mostly replacing existing structures), far short of the 1,000+ miles initially proposed.

Verdict summary

Donald Trump’s 2015 claim that Mexico would directly pay for a U.S. border wall was never fulfilled, despite repeated promises during his presidency.

Sources consulted

— White House Archives (2017–2021): 'Remarks by President Trump on Border Security' (2019) – [https://trumpwhitehouse.archives.gov](https://trumpwhitehouse.archives.gov)
— U.S. Customs and Border Protection (CBP): 'Border Wall System Updates' (2021) – [https://www.cbp.gov](https://www.cbp.gov)
— Reuters: 'Mexico’s president says no to paying for Trump’s border wall' (2017) – [https://www.reuters.com](https://www.reuters.com/article/us-usa-trump-mexico-wall/mexicos-president-says-no-to-paying-for-trumps-border-wall-idUSKBN1572X7)
— Congressional Research Service (CRS): 'Border Security: Appropriations and Funding' (2020) – [https://crsreports.congress.gov](https://www.everycrsreport.com/reports/R45591.html)
— BBC News: 'Did Mexico pay for Trump’s border wall?' (2021) – [https://www.bbc.com](https://www.bbc.com/news/world-us-canada-55740223)