Bristol Palin Files for Sole Custody of Son Tripp

ET has obtained the court papers that show Bristol Palin has filed for sole custody of son Tripp, who she shares with ex-boyfriend Levi Johnston.

Bristol's attorney Thomas V. Van Flein said in the papers, "The best interests of the child compel the conclusion that Bristol should be awarded 100% legal and physical custody of Tripp, with visitation rights in favor of Levi."

Despite a request by Bristol's legal team to keep the court proceedings closed, the status of the case is currently listed as being open. Levi said, "I feel more comfortable in a public courtroom which will help everyone stay civil and be on their best behavior."