Sen. Bernie Sanders wins the Hawaii Democratic caucuses

(CNN) – Saturday was a big day for Bernie Sanders’ quest for the Democratic presidential nomination as he swept to resounding victories in the caucus states of Hawaii, Washington and Alaska. But the delegate math is still in Hillary Clinton’s favor.

“We knew things were going to improve as we headed West,” Sanders said at a jubilant rally before 8,000 people in Madison, Wisconsin — a state that will hold the next major contest in 10 days. “We have a path toward victory.”

Clinton built up her delegate lead on the back of a strong run in the South, and Sanders argued Saturday his campaign always knew those states would be tough. In Madison, he said the map now offers more opportunities for his campaign as the contest progressed, largely because his wins are being powered by huge turnout among younger voters.