Sanders tells University of Chicago to change the world

CHICAGO (AP) - Democratic presidential candidate Bernie Sanders told students at the University of Chicago that's it's up to them to work to change the world.

The U.S. senator from Vermont graduated in 1964 from the university, where he led student protests against racially segregated housing. He returned on Monday to speak to hundreds of students inside the school's Rockefeller Chapel. He says he's learned about organized labor and democratic socialism and the fight for social justice.

Sanders has advocated for free college tuition at public universities.

Sanders told students that "change never takes place from the top down. It always takes place from the bottom on up."

Sanders' speech is part of the university Institute of Politics' "Road to 2016" series.