U.S. Rep. Martha McSally, a two-term Republican from Tucson and former Air Force combat pilot, on Friday officially entered an already volatile race for Arizona’s open U.S. Senate seat, setting the GOP field for the drive to the Aug. 28 primary.

In a video posted to YouTube Friday morning, McSally plays up her Air Force background, including being the first female pilot to fight in combat, and presents herself as a member of Congress who gets things done in an age of gridlock.

She also signals her intent to align herself with President Donald Trump — in tone and policy — whose backing could be crucial in the Republican primary.

“Like our president, I’m tired of PC politicians and their BS excuses,” she says on the video. “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. Now I’m running for the Senate to fight the fights that must be won.”

McSally’s Senate bid had been widely anticipated from almost the moment on Oct. 24 that incumbent U.S. Sen. Jeff Flake, R-Ariz., announced he would retire rather than face re-election this year.