Indiana Sen. Dan Coats announces he won't seek re-election in 2016

"While I believe I am well-positioned to run a successful campaign for another six-year term, I have concluded that the time has come to pass this demanding job to the next generation of leaders," Coats said in a press release. "Until the end of my Senate term, I pledge to my constituents that I will continue to focus all of my time and energy on the major challenges that Hoosiers sent me to Washington to address."