Conaway, a veteran lawmaker who represents a ruby red district, has a news conference scheduled for Wednesday in Midland, but did not specify a topic. Republican sources, however, are expecting him to say he’s retiring. His office declined to comment.

Conaway has served in Congress for 15 years, but stepped into the national spotlight in 2017 when he was tasked with leading the House Intelligence Committee’s probe into Russian interference in the 2016 election. The panel’s then-chairman, Rep. Devin Nunes (R-Calif.), had agreed to step aside from the investigation amid ethics charges against him.

Conaway, 71, is also the top Republican on the House Agriculture Committee and has served stints in the leadership of the National Republican Congressional Committee, the House GOP’s political arm. Conaway, an accountant, once used his accounting expertise to uncover an embezzlement scheme at the NRCC.