Article continues below advertisementHunter Biden claims it doesn't matter that he abruptly "ghosted" his 7-year-old daughter.Former President Joe Biden's son, 55, argued in a new filing that he was never legally obligated to have a relationship with the young girl, Navy, whom he shares with ex-stripper Lunden Roberts.Hunter made the statement through his lawyer on Tuesday, January 27, in response to Lunden, 34, alleging he didn't honor obligations he agreed to in 2023 and should be held in contempt of court. She also wants increased child support payments.