GREENSBORO, N.C. — Attorneys for John Edwards indicated Tuesday that their defense in his criminal trial for alleged campaign finance violations is winding down, but they did not say whether he or his one-time mistress will take the witness stand.

Lawyer Abbe Lowell said his team would make a final decision about the remaining witnesses late Tuesday.

After Tuesday’s proceedings wrapped up with testimony focusing on financial records, Lowell said the defense could close out its case by calling Edwards, his oldest daughter Cate and Rielle Hunter, the woman with whom he had an extramarital affair while running for president in 2008.

Defense attorneys could also recall Edwards’ ex-aide Andrew Young, the first witness for the prosecution when the trial began more than three weeks ago.

Lowell told U.S. District Court Judge Catherine Eagles that the defense may call several, all or none of the remaining potential witnesses before resting its case.

Edwards’ attorneys have called a series of witnesses this week aimed at shifting the jury’s focus from the lurid details of a political sex scandal to the legal question of whether Edwards’ actions violated federal campaign finance laws.

Edwards is charged with masterminding a plan to use about $1 million from two wealthy donors to hide his pregnant mistress as he ran for the White House in 2008.

He has pleaded not guilty to six criminal counts, including conspiracy to violate the Federal Election Campaign Act, accepting contributions that exceeded federal limits, and filing false campaign-finance statements.

He faces up to 30 years in prison if convicted.