With the help of other Oklahoma House members and Boehner's approval, Bridenstine last month landed a coveted spot on the House Armed Services Committee. However, committee assignments can still be changed.
Rep. Markwayne Mullin, R-Westville, Oklahoma's other new House member, backed Boehner. He said before the vote that House Republicans had settled the question in November when they voted on the leadership team and selected Boehner as candidate for speaker.
The official House vote on Thursday pitted Boehner against Rep. Nancy Pelosi, the California Democrat and former speaker whose party is in the minority. Boehner got 220 votes to Pelosi's 192.
It was the second consecutive opening day of Congress in which an Oklahoman strayed from the party line in the leadership vote. In 2011, Rep. Dan Boren, D-Muskogee, refused to back Pelosi, casting his vote for Rep. Heath Shuler, of North Carolina. Boren and Shuler both retired this year.