Hillary Clinton took full command of the Democratic presidential race on Tuesday as she rolled to major victories over Bernie Sanders in Texas, Virginia and across the South and proved for the first time that she could build a national coalition of racially diverse voters that would be crucial in the November election.
Based on results from Democratic primaries and caucuses in 11 states, Mrs. Clinton succeeded in containing Mr. Sanders to states he was expected to win, like Vermont and Oklahoma, and overpowering him in predominantly black and Hispanic areas that were rich in delegates needed for the Democratic nomination.
Mrs. Clinton, who also won Massachusetts and showed notable strength among Southern white voters, came away with a strong delegate lead over Mr. Sanders — notably larger than the one that Barack Obama had over her at this point in the 2008 presidential race.