As presidents increasingly use national security powers to defend major executive actions, the debate has widened beyond border policy, trade and troop deployments. In Washington, President Donald Trump has applied that same rationale to two highly visible construction efforts: a proposed triumphal arch near Arlington and a ballroom complex at the White House. The move has turned what began as capital-improvement projects into a broader fight over funding, oversight and presidential authority.
Trump ties two Washington projects to security powers
Trump said on Sept. 20 that his planned triumphal arch near Arlington National Cemetery would also serve as a military complex, according to Reuters and the Associated Press. The project, which Trump has described as a 250-foot monument, would house drones, snipers and ammunition under the national security rationale he outlined in a social media post. Reuters reported that the proposal made the arch the second major Trump construction project framed in security terms, after the White House ballroom.
The ballroom project carries a price tag of about $400 million, according to Reuters reporting from May and June. Trump initially said he and private donors would cover the cost, but Reuters later reported that he asked Congress for $1 billion tied to security features for the site, including hardened elements he said were necessary to protect the White House grounds. Reuters also reported that Trump has argued the structure would include thick windows, extensive underground construction and a rooftop drone base.
The White House ballroom is being built on the site of the former East Wing, which was demolished to make way for the project, according to Reuters. In separate coverage, Reuters reported that Trump has said the project does not require the same level of congressional approval when framed as necessary for the safety and security of the White House. That argument has become a key part of ongoing legal and political disputes over the project’s scope and cost.
The immediate impact is concentrated in the Washington region, where both projects involve prominent federal property and high-profile public spaces. Reuters has reported that the ballroom is tied directly to the White House complex, while the proposed arch is planned near Arlington National Cemetery and the Arlington Memorial Bridge corridor. That places the issue squarely in the daily landscape of the capital region, even though the decisions are national in consequence.
What is confirmed is that both projects are moving through public debate as more than symbolic or ceremonial additions. Reuters reported that work on the ballroom has continued amid court and congressional disputes, and that Trump has publicly linked its design to protective functions for the White House. For the arch, Reuters and AP reported that Trump said it would be converted into a military-capable facility, though the Defense Department did not publicly provide additional detail beyond Trump’s statement.
What remains unclear is how extensively either project will be integrated into standing federal security operations. Reuters reported uncertainty over issues including the final configuration of the arch and, earlier this year, whether its proposed height could interfere with flight paths near Ronald Reagan Washington National Airport. Public agencies also have not released a full operational plan describing how the new facilities would be used on a day-to-day basis.
Reuters reported this week that Trump has increasingly used national security as a legal and political justification across a range of policies, from tariffs to domestic deployments and now construction. That matters because courts and Congress have historically granted presidents broader latitude when actions are tied to security needs, especially in the years after the Sept. 11 attacks. Elizabeth Goitein of the Brennan Center for Justice told Reuters that national security can function as a powerful shield in interbranch disputes.
That context helps explain why a ballroom and an arch are now being discussed in the same terms as harder-edged executive actions. Reuters reported that Trump has said the ballroom’s security upgrades would make the structure more resistant to attack and improve protection for the White House complex. He has similarly said the arch would have direct military utility, not just commemorative value.
For residents and visitors in Washington, the practical takeaway is that both projects are likely to remain part of a larger federal power debate rather than simple construction stories. The timeline for the arch’s final design and operational details remains unsettled in public reporting, while the ballroom continues to face scrutiny over cost, authority and purpose, according to Reuters. For now, the administration’s stated position is that both projects serve security needs as well as ceremonial ones.