The political differences between the two main candidates could have major implications for next year’s midtermsNew Yorkers will find out the identity of their next mayor on Tuesday, in a race that will decide who will run, and defend, the US’s largest city at a time when Donald Trump has threatened to send military troops there.Against that backdrop, New York has seen a mayoral election that has pitted two very different Democrats against one another. The race has become an increasingly bitter face-off, laced with alleged racism and Islamophobia, but it is the political differences between the two main candidates