Clinton garnered 78.8 percent of the vote to Sen. Bernie Sanders’ (I-VT) 21 percent in the final contest of the year.
Clinton became the party’s presumptive nominee last week.
Sanders has said he would stay in the race until the party’s summer convention. His campaign confirmed to TPM on Tuesday the senator plans to hold a live streamed talk with supporters to discuss the future of the campaign on Thursday night.
This story has been updated.