If President Obama wants to continue vacationing on Martha’s Vineyard — and, clearly, he does — he may want to buy a place of his own. We’re told the first family is once more scrambling to find a house to rent because the deluxe accommodations where they stayed last summer will not be available this time around. As the Martha’s Vineyard Times first reported, the Obamas are scheduled to arrive on the island Aug. 9, but they can’t stay at the 5,000-square-foot, four-bedroom house in Chilmark where they squatted last summer. Why? We’re told the owner, Obama friend and financial supporter David Schulte, will be in the house for at least a portion of the president’s Vineyard visit. That’s likely to delight Schulte’s neighbors on South Road, some of whom privately grumbled about the road closure caused by the president’s stay, and about the mess left behind by members of the Secret Service. Before Schulte’s place, President Obama had rented the Chilmark estate known as Blue Heron Farm during his three previous island vacations. The 30-acre spread has since been purchased by British architect Lord Norman Foster and his wife, Lady Elena Foster, who paid $21.9 million for the property.