When Maryland Attorney General Douglas F. Gansler arrived at a house party of teenagers in June, he pushed through the crowd, past youngsters dancing on a table and a smattering of red plastic cups. One of the revelers snapped a photo.

As the night wore on, teens at the South Bethany rental home posted tweets, photos and videos of a bash labeled the "eviction party" for its intensity — a celebration where underage participants later confirmed many were drinking alcohol.

Gansler, a Democrat who is running for governor, said this week that he stopped by the Delaware beach house to talk briefly with his teenage son and then left. He said he does not remember whether he saw anyone drinking. But even if he had, Gansler said, it was not his responsibility as a parent or a high-ranking law enforcement official to intervene.