But again, Gabbard has a history of incredibly sketchy behaviour. I don’t think any criticism of her can be compared with the red scare.
She traveled to Syria to meet with the head of a regime the US is actively waging a proxy war against. But it doesn’t end there, it’s the people she went there with.
Had she traveled with any other group, you might be able to give her the benefit of the doubt.
Perhaps she is not a traitor, but she hangs out with Assad and the middle-eastern Nazi party. I suspect treason might be more defensible.
Perhaps you could call hanging out with Assad treasonous, the US has been waging an indirect war against him for years.