Lt. Gov. John Fetterman of Pennsylvania, the Democratic Senate nominee in the state, left, and Dr. Mehmet Oz, the Republican nominee, before their debate in Harrisburg, Pa., on Tuesday. With just over a week until Election Day, candidates in the most competitive races of this midterm season are still 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 Georgia, Gov. Brian Kemp, a Republican, and Stacey Abrams, his Democratic challenger, will debate for a second and final time, at 7 p.m. Eastern...