Joe Biden’s dog, Major, has been involved in its second biting incident in a month, the White House has said.Reporters had seen Major on a walk around the White House south lawn before the president and first lady travelled to the Vietnam Veterans Memorial early on Monday evening.

Joe Biden after adopting Major, in Wilmington, Delaware (Picture: AP) The First Dogs on the South Lawn of the White House (Picture: Getty)She added that the dogs were not allowed on the furniture but Major had been caught on a sofa, adding: ‘They run all over’.