WASHINGTON (TIP): Vermont Senator Bernie Sanders promised in a video address on June 15 night to continue his political revolution, declining to concede the Democratic nomination to Hillary Clinton despite losing a majority of votes to his rival.

Still, he vowed in his video address to do whatever he could do to help Clinton defeat Donald Trump in a general election, promising to work with her to “transform the Democratic Party.” “Election days come and go. But political and social revolutions that attempt to transform our society never end. They continue every day, every week and every month in the fight to create a nation of social and economic justice,” Sanders said, speaking in his video address from Burlington, Vermont. “That’s what the political revolution is about and that’s why the political revolution must continue into the future.”