In his interview with Bill this week, historian Peter Dreier shares why he’s optimistic about America’s future, shining a spotlight on grass-roots initiatives around the country that remind us of our collective capacity to make a real difference. Dreier, author of The 100 Greatest Americans of the 20th Century: A Social Justice Hall of Fame, also explains why the radical politics of Dr. Seuss, the late children’s book author and illustrator, is a source of inspiration.

“The message that Dr. Seuss is sending in his books to young people is to stand up to arbitrary authority and take back your own life and be a fighter for justice and for your own integrity,” Dreier tells Bill. “I think that Dr. Seuss would be very pleased with a lot of the movements today because these are people standing up to authority and big power and trying to take the country back.”