Mr. Moore said that the White House was “100 percent” behind him and that he did not expect any other red flags to derail his expected nomination. He declined to address the specifics of the tax lien or the contempt-of-court citation.

“It’s all been resolved,” Mr. Moore said.

After his divorce became final in 2011, Mr. Moore failed to pay six consecutive months of child support — and only a small fraction of the nearly $19,000 a month that he had agreed to pay his ex-wife, according to court documents.

Mr. Moore failed to respond to repeated requests from the Virginia court to make payments and did not show up for a deposition in the case. In 2013, the court ordered him to sell his home to raise money to pay the debt and forced him to set up an automatic bank transfer each month. After Mr. Moore paid $217,000 toward the debt, Ms. Moore asked the court to revoke the order to sell his home, which it did.

Mr. Moore previously told The New York Times that his dispute with the Internal Revenue Service was a result of a misunderstanding. He said he had claimed both the value of alimony to his former wife, which is deductible on federal tax forms, and the value of his child support payments, which are not eligible for a tax break. He also referred questions about the tax lien to his wife, Anne Carey Moore, who also said Mr. Moore had inadvertently deducted both alimony and child support payments.

On Monday, a Circuit Court judge in Fairfax County, Va., issued a temporary injunction sealing the 2011 divorce records at the request of Mr. Moore’s former wife. The judge scheduled a Friday hearing on the merits of keeping the documents under seal, and Mr. Moore said he planned to ask the court to seal them permanently.