The Ukraine episode revealed some essential and worrisome truths about Trump, two and a half years into his term. He was a president entirely unrestrained, free from the shackles of seasoned advisers who sought to teach him to put duty to country above self and to follow protocols. He had concluded he was above the law, after dodging accountability for flouting rules and withstanding the Mueller investigation. He had grown so confident of his own power, and cocksure that Republicans in Congress would never dare break with him, that he thought he could do almost anything.
