Democratic presidential candidate Bernie Sanders spoke to a huge, energized crowd at Hudson’s Bay High School in Vancouver on Sunday afternoon.

“You are doing something very unusual in American politics. You are telling the truth,” he told supporters inside the school gym.

He urged them all to turn out for next Saturday’s Democratic caucuses, saying he does well in states with high turnout. Sanders addressed a menu of liberal issues: raising the minimum wage to $15 per hour, poverty and income inequality, funding Planned Parenthood, universal health care, rights for women and minorities, the water crisis in Flint, Mich., campaign finance reform, climate change and the environment.

“We have a moral responsibility” to leave the planet habitable for future generations, he said. Sanders said he is eager “to take on the fossil fuel industry” and move toward energy sustainability.

Sanders had a special message for young people seeking a good education, he said: “Young people by definition are the future of America. But when you listen to young people, they ask: `Why is it we’re leaving school $30,000 or $50,000 in debt?’ Why are we punishing millions of young people with outrageous levels of student debt? Last I heard, getting an education was not a crime that deserves punishment.”