House Oversight Committee Chairman Jason Chaffetz (R-Utah) said he will retire at the end of his current term to spend more time with his family.
Seen as a rising star in the Republican Party, Chaffetz said Speaker Paul Ryan (R-Wis.) unsuccessfully tried to convince him to stay.
"I love my family more than the work," Chaffetz said.
He recalled that when he recently turned 50, he realized he had spent more than 1500 nights sleeping in a cot in his Capitol Hill office, while his wife and children were two time zones away.
Chaffetz said his retirement is an example of him practicing what he preaches: "get in, serve, get out."
He said he will not run for any office in 2018, even if 83-year-old Sen. Orrin Hatch (R-Utah) decides to retire.
Chaffetz expressed optimism for the future of Utah politics in his absence, noting that some people have reportedly discussed asking former Gov. Mitt Romney (R-Mass.) to run in that state.