Former Republican presidential contender John McCain reunited with his onetime advisor Carly Fiorina on the campaign trail Saturday in San Diego, offering a blistering indictment of Barbara Boxer’s record on military issues and calling her the “most bitterly partisan, most anti-defense senator in the United States Senate today” — an assessment he said he’d made while having “the unpleasant experience” of serving with her.

“When you hear her say that she supports the men and women in the military, my friends, she does not,” said McCain, a former Navy pilot who was held as a prisoner of war in Vietnam for five and half years after his plane was shot down in 1967. “Because she has never supported the mission; she has never supported victory whether it be in Iraq, or Afghanistan, or anywhere else in the world. Barbara Boxer wants to wave the white flag of surrender and endanger this nation’s national security. It’s time she went back to San Francisco with [House Speaker] Nancy Pelosi.”