Halfway through the first year of his historic administration, President Obama will give himself an early report card this weekend, assembling his Cabinet officials to review their performance and set new goals for the months ahead. All 22 Cabinet-rank officials will meet to discuss “priorities for the administration’s agenda moving forward,” a White House official said. Obama and Vice President Joe Biden will kick off the two-day assessment with a dinner for the Cabinet on Friday evening at Blair House, the building across the street from the White House that hosts many foreign dignitaries when they visit Washington.