Bristol Palin through the years

3 of 25: FILE - This Sept. 3, 2008 file photo shows Bristol Palin, daughter of Alaska Gov. Sarah Palin and former Republican vice presidential candidate, and Levi Johnston at the Republican National Convention in St. Paul, Minn. An Alaska judge's ruling has revealed a heated legal custody battle between Sarah Palin's daughter and the father of Palin's grandson. A November 2009 request by 18-year-old Bristol Palin keep the proceedings closed was denied Christmas Eve. Her Nov. 3 petition for sole custody and child support also seeks a visitation schedule for Levi Johnston, the father of 1-year-old Tripp. (AP Photo/Charles Rex Arbogast, file) (AP Photo/ Charles Rex Arbogast)