Boris Johnson reached the top but was felled by his flaws

Boris Johnson wanted to be like his hero Winston Churchill: a larger-than-life character who led Britain through a time of crisis. He was felled by crises of his own making, as a trickle of ethics allegations became a flood that engulfed his government and turned his own party against him.

Johnson resigned Thursday after the chorus of disapproval from within his own party became too much for him to withstand.