Congressional candidate Mark Lawrence, D-South Berwick, plans to return a donation made by a Biddeford oil company that has come under fire for charging customers for heating oil, and then not delivering, leaving many customers in the cold.

Lawrence, the York County District Attorney, is checking with election officials to see how he can return to donation made by Nick Curro, owner of Veilleux Oil, Marc Malon, a spokesman for his campaign, said Wednesday. Lawrence is also a former state Senate president.

Lawrence has recused himself from the pending criminal case in the York County courts against Curro.

Click here for WGME’s coverage of the case.

Also, Lawrence’s campaign announced the endorsement of the Metal Trades Council at the Portsmouth Naval Shipyard Wednesday. The council is a coalition of 11 labor unions, representing about 2,700 workers.

“Mark was with us when Donald Rumsfeld tried to strip our workplace rights,” said Paul O’Connor, President of the Metal Trades Council, in a press release. “He understands the struggles of working men and women, and we know he will work to restore the dignity and respect that American families deserve.”

Lawrence, who grew up in Kittery, said his father worked as a welder on the shipyard.

“As the son of a Shipyard worker, I am deeply honored to receive this endorsement,” Lawrence said. “My parents put four children through college in part due to the work that the Metal Trades Council has done on behalf of Maine working families.”