Clinton wins Washington, D.C. primary
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Presumptive Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonWoman behind pro-Trump Facebook page denies being influenced by Russians Trump: CNN, MSNBC 'got scammed' into covering Russian-organized rally Pennsylvania Democrats set to win big with new district map MORE is projected to win the Washington, D.C., primary.

The victory will give Clinton a majority of Washington’s 20 pledged delegates and send her into next month’s convention on a high note.

After a tough challenge by rival Bernie SandersBernard (Bernie) SandersDems ponder gender politics of 2020 nominee 2020 Dem contenders travel to key primary states After Florida school shooting, vows for change but no clear path forward MORE, Clinton closed out the primary season winning four of the final six contests. She will finish with an advantage of nearly 400 pledged delegates over Sanders.

Clinton won’t have earned enough pledged delegates from the primaries and caucuses to secure the nomination outright — Democrats rarely do — but superdelegates will push her across the threshold at the convention in Philadelphia in July.

The only remaining question is when and how Sanders decides to exit the race.

Clinton and Sanders were scheduled to meet Tuesday evening, and he will speak to his supporters in a video address Thursday.

Many Democrats are hopeful he’ll drop out of the race out that point and begin the process of unifying his millions of supporters behind Clinton ahead of a general election match-up against Republican Donald TrumpDonald John TrumpAccuser says Trump should be afraid of the truth Woman behind pro-Trump Facebook page denies being influenced by Russians Shulkin says he has White House approval to root out 'subversion' at VA MORE.

Sanders is expected to try to push the Democratic platform in a more progressive direction at the convention. 

He may also use leverage earned through the primaries to push through rules changes, such as the elimination of superdelegates.