Kumi Naidoo: United Nations Shouldn't "Pander to Madness That Comes Out of the Trump Administration"

South African activist Kumi Naidoo joins us at COP23 to discuss the U.S. presence at this year's U.N. climate summit. "The U.N. cannot continue to pander to the madness that comes out of the Trump administration," Naidoo says, after the U.S. hosted a panel at the conference with a forum pushing coal, gas and nuclear power.