Sarah Palin claims Sacha Baron Cohen duped her for Showtime series

Sarah Palin says she was "duped."

The former Republican vice presidential candidate says she fell victim to British comedian Sacha Baron Cohen during an interview for his upcoming Showtime series, Who Is America?

In a Facebook post on Tuesday, the former Alaska governor wrote she and one of herdaughters travelled across the country for what she thought was a legitimate interview. But she says Cohen had "heavily disguised himself" as a disabled U.S. veteran in a wheelchair.

Palin says she sat through what she called a long interview full of "Hollywoodism's(sic) disrespect and sarcasm" before she walked out.

She is challenging Cohen and Showtime to donate proceeds from the show to a veterans' charity.

Emails seeking comments from Cohen and Showtime have not been returned.