From the outset, China wasn't included when major powers gathered in 1975 at a chateau outside Paris to fix the slumping global economy, the first of what have become annual summits by the G7 club of wealthy nations to forward their interests.A year ago, Trump mused about possibly expanding the club to include China, saying “ it’s not a bad idea " when a journalist asked him. But an unwritten G7 rule has always been that it's only for democracies. (AP)No surprise there. Imagining Chinese revolutionary leader Mao Zedong brainstorming with U.S. President Gerald Ford and other leaders would have...