Canadian Prime Minister Mark Carney is heading to Washington for his second visit this year — this time with the more modest goal of putting trade talks back on track. Negotiations have dragged on over the summer, blowing past an August deadline set by the two leaders. But few details have been released about the discussions or the issues preventing a deal. Canada is the only G7 country yet to reach a trade deal with Trump this year, though unlike other allies, Ottawa is not in a rush given