Week 4 of college football features a series of notable matchups, including the Iowa-Michigan game and the USC-Oregon showdown. This week is noted for having the highest number of ranked games since last year. Predictions and betting lines are available for the top 20 matchups. Live updates, schedules, and scores are tracked on NCAA.com. Donald Trump attended a game with a plan to protect communications. Live broadcasts are available on SiriusXM and local stations.