Bill Clinton celebrates 20 years of AmeriCorps

In the 20 years since President Bill Clinton signed the AmeriCorps National Service Program into existence, more than 900,000 participants have worked on service projects across the U.S. They've tutored kids, aided communities after disaster and fought hunger. The former president joins Judy Woodruff to discuss AmeriCorps, fighting the Islamic State, the Ukraine crisis and the midterm election.