• Trump increasingly cites national security to justify policies.
• National security used to justify building a triumphal arch.
• President also invokes security for press restrictions and union rights.
• National security cited for environmental policy exemptions.

This trend may indicate the administration's willingness to use national security as a rationale for a wide range of policies, which could have significant implications for the balance of power in the US government. The invocation of national security in various contexts suggests a potential shift in the way the administration approaches policy decisions, which could impact the aerospace and defense industries.