The Senate candidates from North Carolina, Cheri Beasley, center, and Representative Ted Budd, right, were introduced before their debate in Raleigh last week. With less than a month to go until Election Day, candidates in the most competitive races of this midterm season are hashing out their differences in debates. Read about those that have taken place so far, and see where and when to watch the events to come. In Colorado, Senator Michael Bennet, a Democrat, and his Republican challenger, Joe O’Dea, will participate in a 30-minute forum on mental health at 12 p.m. Eastern time. The forum will...