what does "until this hour that hadn't matter"mean? what does "that" indicate? The enormity of what had happened had just begun to hit her, but she had already determined that she would not leave here. Parkland’s staff didn't understand the strength of the will behind that decision. They knew only her reputation, and like Robert Kennedy she was a very different person than the public imagined. He was gentler and more sensitive than he was thought to be; she was far firmer than people believed. Inevitably both had been overshadowed by the President. Until this hour that hadn't mattered. In the void he was about to leave they would emerge, however, and for Mrs. Kennedy the time to assert herself was now.