Department of Homeland Security Secretary Markwayne Mullin told the House Homeland Security Committee on Wednesday that DHS is on track to complete a primary border wall stretching from the Pacific Ocean to the Gulf of America by June 2027, with all contracts expected to be finalized by the end of this month.
The testimony comes as illegal border crossings have dropped to historic lows under President Trump's second term, according to administration officials. The GOP-led "Big Beautiful Bill" included funding for enhanced border security reinforcements.
Mullin outlined a two-phase approach during the hearing. Beyond the primary wall, DHS plans construction of a secondary barrier system due to what Mullin described as cartels learning to breach existing sections.
What the Left Is Saying
Democratic lawmakers and immigration advocates have long questioned whether physical barriers represent an effective use of resources for addressing irregular migration. Critics argue comprehensive reform provides a more sustainable solution than infrastructure alone.
The hearing grew contentious when Rep. Shri Thanedar (D-MI) pressed Mullin on DHS social media practices, asking when the department would stop accounts that critics say promote "great replacement theory."
"When will you stop DHS from using its social media accounts to spread bigoted and racist words and imagery, promoting great replacement theory?" Thanedar asked.
Mullin's response drew criticism from Democratic members present. The exchange highlighted ongoing tensions between Congress and the department over messaging related to immigration policy.
Progressive groups have maintained that border walls fail to address root causes of migration, including economic instability and violence in Central American countries that drive asylum seekers northward.
What the Right Is Saying
Republicans on the committee praised Mullin's testimony, pointing to declining border crossing numbers as evidence that physical barriers work when properly funded and implemented.
"On the border wall, first of all, we are on track to have the primary wall done, completed from the Pacific to the Gulf of America this time next year," Mullin said. "We'll have all contracts out by the end of this month."
GOP members echoed administration arguments that cartels and criminal networks have adapted their methods when encountering gaps in barrier systems, necessitating both primary and secondary reinforcement walls.
The secretary described plans for a secondary wall reaching 150 feet in some areas, along with smart wall technology designed to detect crossing activity including whether individuals are carrying packs. Mullin said drones would provide real-time monitoring of breach attempts.
Conservative commentators have framed the administration as fulfilling campaign promises on border security, pointing to the decline in illegal crossings since Trump took office.
What the Numbers Show
During the Biden administration, Border Patrol agents recorded a daily average of 5,110 illegal migrants crossing the southern border, according to government data cited by DHS officials.
Current administration figures indicate illegal border crossings have fallen to historic lows under Trump's second term, though specific numerical data from this period was not included in Wednesday's hearing testimony.
The "Big Beautiful Bill" passed by congressional Republicans allocated funding specifically for enhanced border security infrastructure, including wall construction and technology upgrades. The exact appropriation amount has been a subject of ongoing appropriations discussions.
DHS officials have cited cartel operations as requiring adaptive responses, noting that criminal organizations have developed methods to cut through and breach existing barrier sections in multiple documented instances.
The Bottom Line
The timeline presented by Secretary Mullin represents the most specific construction schedule offered for coast-to-coast border barrier completion since the original Trump administration initiative. Whether that timeline holds will depend on contractor availability, land acquisition in contested areas, and continued congressional appropriations.
The contentious exchange with Rep. Thanedar underscores how DHS communications strategy remains a flashpoint between the administration and Democratic lawmakers. Immigration policy messaging has become an increasingly visible point of political contention in Washington.
Critics from both parties will be watching construction progress closely. Those skeptical of wall effectiveness say funding would be better directed toward technology, personnel, and addressing underlying migration drivers. Supporters argue physical barriers provide necessary deterrence that complements other enforcement measures.
What to watch: contract awards expected by month-end, any legal challenges to eminent domain seizures for borderland parcels, and whether crossing statistics continue their recent trend as construction expands.