Arizona GOP Rep. Martha McSally officially announced her Senate campaign Friday, kicking off what is likely to be a divisive Republican primary.

“Like our president, I’m tired of PC politicians and their BS excuses,” McSally said in a video announcement emphasizing her service in the Air Force. “I’m a fighter pilot and I talk like one. That’s why I told Washington Republicans to grow a pair of ovaries and get the job done.”

“After taking on terrorists in combat, the liberals in the Senate won’t scare me one bit,” McSally says in the video.

GOP Sen. Jeff Flake’s retirement opened up the hotly contested seat. Democrats view Arizona as one of their few potential pickup opportunities in 2018.

Watch: How the Open Seats Are (or Aren’t) Creating Opportunities in the House