DICKSON, Tenn. (AP) — Sen. Lamar Alexander said Tuesday that he was disappointed when Sen. Bob Corker decided not to seek re-election, and the two Republicans have recently talked about calls for Corker to reverse course. But Alexander claims he hasn't urged Corker to run again, insisting that he is "staying out of it." Alexander's comments to reporters come as Corker's camp said he's "listening closely" to those encouraging him to reconsider and run in a contest that could sway the thin majority in the Republican-led U.S. Senate.