Doc Hastings

Susan Walsh / AP Photo

U.S. Rep. Doc Hastings will retire at the end of the year, he announced Thursday.

Political watchers are already speculating on who might run to replace the long-time representative. The district is considered strongly Republican, so a Democratic upset is unlikely.

Hastings served two decades as south-central Washington’s Republican congressman. 

“I turned 73 last Friday, and one more term, I would have been nearly 76, so I just thought this was the right time,” he said.