Does 'We have concluded, from the available evidence, that the Vice President arrived in the room shortly before 10:00, perhaps at 9:58.' provide a contradiction to the established premise 'The Vice President was needed to give directions to the other officials.'
We have concluded, from the available evidence, that the Vice President arrived in the room shortly before 10:00, perhaps at 9:58.###The Vice President was needed to give directions to the other officials.