If they can't find out who brought it inside the white house, they have just proven to the world that they cannot protect the President and should be fired and replaced.
Hellllooooo! 4th Amendment protection shuts down any investigation of the residents of 1600 Pennsylvania Ave without a probable cause search warrant. That implies it belonged to someone, or family member, who lives there.
KARINE JEAN-PIERRE REPEATEDLY DODGES QUESTIONS ON SHAM COCAINE INVESTIGATION; SECRET SERVICE REFUSED TO INTERVIEW ANY OF 500 SUSPECTS IN WHITE HOUSE COCAINE SCANDAL