Martin O'Malley is being investigated for a possible ethics violation during his time as governor of Maryland.

The Baltimore Sun reported that it received documents that show O'Malley and his wife paid $9,638 for 54 pieces of furniture from the Department of General Services — items that originally cost taxpayers $62,000 — but had been declared "junk" by his administration. This "junk" was used to help furnish the governor's mansion.

An assistant attorney general asked for a state ethics commission Friday to look into whether O'Malley violated a rule that prohibits preferential sale of state-owned property to government officials.

O'Malley's representatives said O'Malley did not break any ethics rules and that the furniture had been authorized to be thrown away, the Baltimore Sun reported.

O'Malley served as governor of Maryland from 2007 to 2015 and is running for the Democratic nomination for president. He currently stands at 1.5 percent in a RealClearPolitics aggregate of polls for 2016 Democratic candidates.