Congressional races in central New York are often considered bellwethers for the nation. In 2018, some central New York Democrats successfully challenged Republican incumbents, while others came up short. Why? Was is because of Donald Trump? This week, Grant Reeher explores the reasons behind this with Luke Perry, a professor of political science at Utica College, and author of the book "Donald Trump and the 2018 Midterm Battle for Central New York."