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Jason Chaffetz, chairman of the House Oversight Committee, will resign at the end of Juneby Kellan Howell

Rep. Jason Chaffetz (R-UT), chairman of the powerful House Oversight Committee, announced Thursday that he will resign from Congress before the end of his term. 

In a letter to his constituents, Chaffetz said he will leave on June 30. 

"After careful consideration and long discussion with my wife, Julie, we agree the time has come for us to move on from this part of our life," he wrote

Chaffetz did not make mention of the investigation his committee is conducting into President Trump's firing of former FBI Director James Comey. 

He did not mention any future plans, although many have speculated he may run for Utah governor in 2020. 

"The reality of spending more than 1,500 nights away from my family over eight years hit me harder than it had before," he said.

Chaffetz announced earlier this year that he would not seek re-election in 2018. 

Washingtonian Magazine reported last week that Chaffetz had been telling fellow Republicans in Congress that he's gearing up for a role at Fox News. 

His exit raises questions about the future of the Oversight Committee's probe. Chaffetz has asked Comey to testify before the committee next week and has subpoenaed his memos on his interactions with President Trump.