The United States authorities have officially closed the investigation into the source of cocaine found at the White House, citing a “lack of physical evidence,” according to the Secret Service. The announcement made on Thursday is expected to further fuel conspiracy theories, especially among Republicans, including former President Donald Trump, who baselessly linked the drug to President Joe Biden and his son, Hunter.

The Secret Service, responsible for White House security and conducting the investigation, stated that the FBI was unable to obtain any fingerprints from the package containing the drug. “There was no surveillance video footage found that provided investigative leads or any other means for investigators to identify who may have deposited the found substance in this area,” the Secret Service stated in a released statement. As a result, they concluded that without physical evidence, it would not be possible to pinpoint a person of interest from the numerous individuals who passed through the vestibule where the cocaine was discovered.

It is worth noting that the White House has previously clarified that President Biden and his family were not present in the building on the day the cocaine was found. Furthermore, the substance was discovered in a “heavily travelled area.”

The package containing the cocaine was initially discovered on July 2 “inside a receptacle used to temporarily store electronic and personal devices prior to entering the West Wing,” according to the Secret Service’s latest statement. The Washington, DC Fire and Emergency Medical Services Department followed by the FBI, confirmed that the substance was indeed cocaine.

Since the incident, some Republicans have attempted to tie the discovery to Hunter Biden, who has openly struggled with drug abuse in the past. Former President Donald Trump also weighed in on the matter, baselessly linking the cocaine to the Bidens on his Truth Social platform last week.

Several Republican lawmakers expressed scepticism regarding the Secret Service’s conclusion, with right-wing Congressman Andy Biggs tweeting, “Unacceptable. It’s time to investigate the investigators.” Congressman Tim Burchett, in a video posted on social media, called the probe a “bad look” for the Secret Service, highlighting the high-security measures in place at the White House.