When Hillary Clinton dueled with Barack Obama for the Democratic presidential nomination in 2008, their slog eventually yielded to a largely unified party. Obama said the process made him a

stronger candidate and he later persuaded Clinton to become his secretary of state. Eight years later, Clinton is again in a lengthy primary that seems certain to extend longer than most

people imagined. But how the fight against Bernie Sanders positions her for what’s expected to be an ugly fall election remains far less clear. Clinton aides insist there’s little they will

do to push Sanders from the race, but they are beginning to show signs of impatience with what they perceive as the increasingly negative tone of his campaign. READ THIS STORY FOR FREE To