BRISTOL PALIN’s baby daddy LEVI JOHNSTON on the offensive – wants equal custody of his love child.

Former Alaska gove and 2008 GOP Veep candidate Sarah Palin’s daughter is in a new custody battle with Johnson over their 4-year-old son, Tripp.

Associated Press reported Alaska’s favorite son has filed court papers to gain custody back.

As The ENQUIRER previously reported the estranged former lovers have been battling over the toddler for years with Bristol complaining that her baby daddy never paid any child support, and Johnston claiming that his ex refused to let him see the boy.

After Johnston filed the petition to regain 50/50 custody Bristol’s attorney’s told the court that he owes her $66,000 in back child support.

Johnston and Bristol never married but he wed blonde beauty Sunny Oglesby in 2012 and they have a daughter together, named Breeze Beretta Johnston.

Mama Bear Sarah Palin has remained relatively mum on this heart-rending new development.