NYT: The Battlegrounds Within Battlegrounds. “The most contested battles this year will take place in six states: Arizona, Florida, Michigan, North Carolina, Pennsylvania and Wisconsin. Mr. Trump won some of them by razor-thin margins. Within these states are 20 counties that will help decide who wins enough electoral votes to reach the White House. They represent groups of voters both candidates are seeking. Here’s what to watch for in these battlegrounds within battlegrounds.”