(CNSNews.com) -- Meghan McCain says that Senate nominee Christine O'Donnell of Delaware, a Tea Party favorite, is "seen as a nut job."
"Christine O'Donnell is making a mockery of running for public office," Meghan McCain said of O’Donnell.
Appearing on ABC's "This Week," McCain, the daughter of Senator John McCain, said O'Donnell "has no real history, no real success in any kind of business."
McCain claims O’Donnell’s candidacy sends a message to people her age that, “you can just wake up and run for Senate, no matter how lack of experience you have."
O'Donnell defeated Mike Castle, a former two-term governor and longtime member of the U.S. House of Representatives, to win the Republican U.S. Senate nomination from Delaware.
O'Donnell prevailed with the help of the conservative Tea Party movement and Sarah Palin, the former Alaska governor who was John McCain's running mate in the 2008 White House race.
"It scares me for a lot of reasons, and I just know in my group of friends, it just turns people off, because she's seen as a nut job," McCain, author of the book “Dirty Sexy Politics” said.
O'Donnell's campaign later responded to McCain.
"Christine overwhelmingly won her primary battle against the establishment candidate, so Ms. McCain's vast experience in politics and running for office probably won't influence many Delawareans of any age to listen to her latest rant," Matt Moran, O'Donnell's campaign manager said in a statement.
Senator John McCain's press office did not respond to requests for comment on his daughter's statements.