WASHINGTON (CBSNewYork/AP) — Hillary Clinton has won the Democratic presidential primary in Washington, D.C., capping the 2016 presidential primary season with a final win over Vermont Sen. Bernie Sanders.

Hours before the results, Sanders was still declining to offer his endorsement of Hillary Clinton, telling reporters he will simply “fight as hard as we can” to transform the Democratic Party.

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Sanders told reporters ahead of a Tuesday night face-to-face meeting with Clinton, the presumptive Democratic nominee, that he wants to push for new leadership in the Democratic National Committee, a progressive platform in the summer convention and electoral changes such as primaries that allow independents to participate.

Sanders told reporters outside his Washington campaign headquarters: “We need major, major changes in the Democratic Party.” He declined to say whether he will suspend his campaign following Tuesday’s results District of Columbia.

Sanders and Clinton met behind closed doors in Washington on Tuesday night.

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