The Emmy Award-winning actress accused the political party, media mogul Rupert Murdoch and his US network Fox News of poisoning the political atmosphere.
"We're experiencing divisiveness in terms of our politics. Like, the Religious Right has identified themselves because of the propagandising and illiteracy of... I don't know - News Corp, maybe?" she told the Los Angeles Times Magazine.
Barkin continued: "They have identified themselves with this extremist, right-wing insurgency of a party - this Tea Party. They call it a grassroots movement. Grassroots?
"[They're] attached to the wrong ship. That just shows you the enormous - and don't misquote me here - the enormous success that has killed us in terms of Fox News."
Barkin further claimed that Fox News's support of the Tea Party has led to a total loss of objectivity when reporting the headlines.
"The blatant lying that passes itself off as journalism - I don't even need to get there to go mental. Can you imagine a legitimate newsperson - Walter Cronkite, Dan Rather, Tom Brokaw - just lying on the news?" the star asked.
Barkin added: "Let alone the entertainment factor - you know, news as entertainment. And because of the enormity of the money behind that machine, they have convinced this ever-growing group of really struggling, working-class people, that these f**kers can somehow, in some way, represent them.
"They do not. I mean, let's not even start, because that'll take up a whole month if I go down that road."
Barkin is co-starring with Demi Moore and Kate Bosworth in the drama Another Happy Day, which is expected to be released in the coming months.
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Watch a trailer for Another Happy Day below: