increase their commitments. secretary kerry, the climate envoy, has traveled nonstop the last few months trying to make that case. i think if there's a successful cop summit with the united states having this major commitment, what it does is increase pressure at home in these countries. i've listened so chinese climate activities talk over the last week about their movement in china to bring greater commitment to reduce carbon dioxide emissions. that's the kind of pressure that's going to change things for xi jinping. it's really not american demands and assistance or the level of our spending. it's the pressure they feel at home and the pressure they feel to be international citizens in an acceptable way. >> david ignatius, always great to see you. thank you so much for being on the show. still ahead, former new york governor andrew cuomo now charged in connection with his sexual harassment scandal. what he's accused of doing and