Long Island is a good place for a Trump rally. The largest population element are whites of Italian, Irish, and mid-European ancestry. The demographics include a higher than average proportion of people over 50. These are the children and grandchildren of the New York City residents of the early and mid-20th Century. They are from family backgrounds similar to Trump's own. Nassau and Suffolk Counties have not done well economically compared with the rest of the New York metro area or the coastal Northeast in general. The area never recovered fully from the post-Cold War loss of much of its aircraft industry. It recently lost its NHL franchise, and many of its young people have moved to Manhattan, Brooklyn, and more distant points. As a result, Long Island should be an area hospitable to Trump.
Excellent post! Upstate NY should also be Trump Territory.