The White House is apparently giving up on finding who is responsible for leaving an illicit drug in the executive mansion last weekend. At least, that’s what Politico reported based on the testimony of an unnamed law enforcement official. “White House cocaine culprit unlikely to be found: Law enforcement official,” the headline reads.A snarky subhead noted, “Lines may have been snorted and crossed,” but “it’s possible we won’t know by whom.”Officials evacuated the White House on Sunday evening after a white powdery substance was reportedly discovered in a “work area” in the West Wing (the location later changed to “near...