A.M. Edition for Oct. 17. WSJ correspondent Lingling Wei explains what convinced China\u2019s leader to embrace broad stimulus measures after resisting prior calls to do so, even as he holds off on a full policy u-turn. Plus, Republicans worry Donald Trump\u2019s strategy of outsourcing door-knocking may cause them to fall behind in key states. And scientists see hope in their race to save the banana. Luke Vargas hosts.\n\n\n\nSign up for the WSJ\u2019s free What\u2019s News newsletter.\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices