Typically when President Obama vacations on Martha’s Vineyard, very little official business is conducted. He and his family take bike rides in the Manuel F. Correllus State Forest or along Lobsterville Beach in Aquinnah; they grab lunch at Nancy’s in Oak Bluffs; eat dinner at State Road or the Beach Plum Inn; go to informal gatherings hosted by friends/advisers such as Valerie Jarrett and Harvard Law professor Charles Ogletree; and, of course, there are the countless rounds of golf at Farm Neck Golf Club, Mink Meadows Golf Club, Edgartown Golf Club, or Vineyard Golf Club. (Farm Neck seems to be his favorite.) This summer could be a little different. Politico got its hands on an invitation to an Aug. 11 fund-raising dinner for the Democratic Senatorial Campaign Committee being hosted by Berklee College of Music President Roger Brown and his wife, Linda Mason, and it appears Obama is planning to attend. (Brown wouldn’t talk to us, but said through a spokesperson that he’s hosting the event “as a private event as a private citizen,” and has hired two recent Berklee grads, pianist Clifton Williams and vocalist Jeniffer Criss, to perform.) The first family is scheduled to arrive on the Vineyard Aug. 9 and spend two weeks at an enormous residence in Chilmark. The president has many fans on the island, but we’re told that even some of Obama’s most ardent supporters are questioning the wisdom of this summer’s sojourn as war roils Gaza and a wave of families and children are crossing the southwestern US border illegally.