Democratic voters had a message for Hillary Clinton on Saturday: It’s not over yet. The front-runner may possess a substantial lead, support from elected officials, and the backing of the party establishment. But in the three states where voters caucused on Saturday, they cast their ballots for Bernie Sanders by huge margins. In Hawaii, with most votes tallied, he chalked up 71 percent; in Washington, he held 73 percent; and in Alaska, he claimed 82 percent support, making Clinton take the end of the stick this Saturday. Although he narrowed Clinton’s lead, though, Sanders has yet to alter the underlying dynamics of the race, something that he must do if he still hopes to secure the party’s nomination. He performs best in states like those that voted this Saturday those which hold caucuses and not primaries, and in which black and Hispanic voters comprise only a small portion of the Democratic electorate. But that won’t be enough to close the gap with Clinton, unless he can broaden his appeal.

Polls show Clinton and Sanders in a tight battle in Wisconsin, which holds its primary on Tuesday April 5^th. It’s the sort of state that Sanders must not merely win, but win by a large enough margin to continue to erode Clinton’s lead. “With your support coming here in Wisconsin, we have a path toward victory,” he told the crowd in Madison. And on Saturday night, at least, that sounded plausible.

Here is the full victory speech for Senator Sander’s sweep: