Oklahoma’s governor picks Alan Armstrong to fill U.S. Senate seat

OKLAHOMA CITY (AP) — Oklahoma’s governor on Tuesday appointed energy executive Alan Armstrong to serve in the U.S. Senate through the end of the year and finish the term of Republican Markwayne Mullin, the new homeland security secretary.

The choice by Republican Gov. Kevin Stitt, who had pledged to pick a “conservative voice” to fill Mullin’s seat, elevates to the Senate the chairman and former CE…