White House officials preparing for this summer's World Cup say reopening of the Department of Homeland Security is "essential" after a man was charged with attempting to assassinate US President Donald Trump at a gala event in Washington DC.
A dispute over funding between members of Congress has led to a long-running partial shutdown of the department.
According to prosecutors, Cole Tomas Allen, 31, was carrying a semi-automatic handgun, a pump-action shotgun and three knives as he charged past a security checkpoint at the White House Correspondents' Association dinner on Saturday.
He did not enter a plea when appearing in court on Monday.
The incident has sparked a White House security review.
As first reported by The Telegraph,, external those in charge of planning for the 2026 World Cup in the United States have also expressed concern.
In a statement issued to BBC Sport, Andrew Giuliani, executive director for the White House World Cup task force said events in Washington DC were a "sobering reminder of the unpredictable threats facing our nation".