By Jordan Fabian - 06/28/11 11:00 PM EDT
Bristol Palin, meanwhile, told Fox that her mother "definitely knows" whether she'll run and said she would like her to enter the race.
"We've talked about it before, but some things just need to stay in the family," she said.
Should she run, Palin said that she would be committed to the Iowa caucus process, even though she has yet to make any formal inroads in the state.
"110 percent," said Palin when asked if she would commit to Iowa. "Doing as much as I can to garner that support. It's necessary."
-- This story was corrected on 6/29/2011 at 10:14 a.m.