When Bill de Blasio arrived late to a memorial marking the anniversary of the crash of Flight 587 last week, he came with an unlikely excuse: his boat to the site was delayed by fog. The mayor has since backtracked—he had a "rough night," he said later—but has maintained that weather played a factor. A new report suggests it didn't.

Mayor Bill de Blasio defended his late arrival to a plane crash memorial service today, telling reporters he really couldn't be blamed because he was feeling "sluggish" this morning.

Bill de Blasio, a large and unpunctual man, bumbled through a fog both literal and figurative on his way to a scheduled appearance this morning, to which he was 20 minutes late.