The Hong Kong issue leaves a sour taste on Thanksgiving Day. China summons the U.S. ambassador after President Trump signs legislation backing pro-democracy protesters in Hong Kong. The bill is set to test relations between Washington and Beijing as both sides race to complete a phase one trade deal, and weighs on markets in Asia. Deere & Co blames the tensions for its latest profit warning, sending shares in the world's largest farm equipment maker sharply lower. A key YouGov poll puts Boris Johnson's Conservatives on course for a majority in the upcoming election, while Labour accuses the government of putting the National Health Service on the table in US trade talks.