Rep. Troy Nehls, R-Texas, announced Saturday that he would not seek re-election next year.

Nehls, a close ally of Donald Trump who co-sponsored legislation that proposed putting the president on the $100 bill and renaming Washington’s Dulles International Airport after Trump, said he came to his decision after consulting his family during the Thanksgiving holiday — and that he intends to “focus on my family and return home after this Congress.”

Nehls’ announcement adds to uncertainty for House Republicans. Their majority — 219 to 213 — will shrink after Rep. Marjorie Taylor Greene, R-Ga., resigns effective early January, and after a number of other Republicans retire or seek other office.