06/28/2011 11:33 am ET Updated Dec 06, 2017

Sarah Palin 'Knows' Whether She'll Run For President In 2012: Bristol Palin (VIDEO)

Bristol Palin said during an appearance on Tuesday's edition of "Fox & Friends" that her mother "definitely knows" whether or not she will run for president of the United State in the next election cycle.

"We've talked about it before," said the 20-year-old daughter of former Alaska governor Sarah Palin. "Some things just need to stay in the family."

The remarks come the same day as the potential presidential candidate heads to the key primary state of Iowa for the premiere of a documentary on her tenure as governor. News of the film has stirred speculation about what plans, if any, the elder Palin has in the works for 2012.

Earlier this week, Bristol Palin said during an interview on ABC's "Good Morning America" that she'd be excited if her mother decided to launch a campaign for the White House in 2012.

"I think she's smart," the younger Palin said of her mother. "I think she would be awesome for our country."