London: Bristol Palin, who is believed to have developed an increasing liberal stance since late 2010, has reportedly banned her overly Republican mother Sarah from her house in Arizona.
The 20-year-old is said to have had a huge row with Sarah when she announced she was considering supporting gay marriage, reports the Daily Mail.
According to the National Enquirer, she has told her mother to stay out of her house until she accepts her new views - which Palin is worried could harm her own political ambitions.
Bristol is hoping her mother will back down if she refuses to let her see her grandson, Tripp.
An insider told the newspaper: “Bristol is completely rebelling against her mother - now that she`s experiencing life outside of Alaska and away from Sara.
“She has opened her eyes and realised how sheltered and programmed she was,” the source added.