Republican U.S. Senate candidate Martha McSally accused Democratic opponent Kyrsten Sinema of committing treason, based on a radio conversation 15 years ago when Sinema was helping to organize Phoenix protests against the war in Iraq.
McSally, a two-term Republican congresswoman from Tucson and retired combat pilot, dropped her bomb with just seconds left in the first and only televised Senate debate in Arizona.
"We are running out of time," moderator Ted Simons, an anchor with Arizona PBS, warned McSally as she veered toward an unannounced topic.
McSally was incensed by the absence of questions about veterans and the military during the 60-minute debate.
"I want to ask right now," McSally said to Sinema, "whether you're going to apologize to the veterans and me for saying it's OK to commit treason."
Sinema, a House member from Phoenix in her third term, responded, "Martha has chosen to run a campaign like the one you're seeing right now," as McSally interjected, "It's treason."
"She's engaging in ridiculous attacks and smearing my campaign," Sinema said. "She's just trying to cut, cut, cut, and not show the full picture."