Rep. Blake Farenthold (R-Texas) plans to retire after his term is up at the end of 2018, according to two GOP sources.

Farenthold spoke with GOP leaders, including Speaker Paul Ryan (R-Wis.) and Rep. Steve Stivers (R-Ohio), chairman of the National Republican Congressional Committee, ahead of an expected announcement.

Farenthold did not respond when questioned Thursday morning in a Capitol hallway.

The House Ethics Committee announced earlier this month that it would open an investigation into Farenthold, particularly whether he sexually harassed a former staffer and retaliated against her when she complained about his conduct.