Senator Dan Coats has announced that he will not seek reelection in 2016, so who will take his seat? 3rd District Congressman Marlin Stutzman says he is thinking about it. He says he and his wife Kristy are going to take a couple of weeks to explore the option, then make a decision in the upcoming month. Eric Holcomb is also scheduled to announce his run for Senator. Wednesday, he resigned as chief of staff for Senator Dan Coats. He was also the past State Chairman for the Indiana GOP.