NASHVILLE (AP) — U.S. Rep. Scott DesJarlais, who has been battered by a series of scandals, is locked in a razor-thin battle to hang onto his seat in Tennessee’s Republican primary.Results from Thursday’s balloting show DesJarlais with just a 33-vote margin ahead of state Sen. Jim Tracy. The race was too close to call and may ultimately be decided on a possible recount.Desjarlais, a physician, won re-election in 2012 despite revelations he urged a patient he was dating to seek an abortion.After the election, court officials released transcripts of divorce proceedings that included DesJarlais admitting under oath that he had eight affairs and used a gun to intimidate his first wife.Tracy had far outpaced DesJarlais in campaign fundraising.