That quote isn’t from her.
Yes, you’re right. She ‘only’ said she agreed with it.
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“Sinema, a Democrat running for a U.S. Senate seat against GOP Rep. Martha McSally of Arizona, made the comments during a radio interview in February 2003 with libertarian activist Ernest Hancock.
“As an individual, if I want to go fight in the Taliban army, I go over there and I’m fighting for the Taliban. I’m saying that’s a personal decision,” Hancock said in the interview, which was first reported by CNN Friday.
“Fine,” Sinema responded. “I don’t care if you want to do that, go ahead.”