Hunter Biden is trying to get his child support payments for his 4-year-old love child lowered by claiming a substantial change to his “financial circumstances,” according to court documents. President Biden’s son, 52, has asked an Arkansas judge to recalculate the child support payments he makes to Lunden Roberts, 31 — the mother of the daughter he’s never met, according to a Monday court filing obtained by the Northwest Arkansas Democrat Gazette. Hunter cited “a substantial material change” in his “financial circumstances, including but not limited to his income” for the reason behind his request.