A federal judge has postponed the sentencing of a consultant to D.C. Mayor Vincent Gray's 2010 campaign.

In a one-page order, U.S. District Court Judge Colleen Kollar-Kotelly rescheduled Howard Brooks' sentencing hearing for Oct. 10. Brooks had been slated to appear on Sept. 24.

Kollar-Kotelly cited "a conflict with the court's calendar" as the reason for setting the new date.

Brooks pleaded guilty in May to a felony charge of making a false statement to federal investigators. Under his plea agreement, he faces a sentence of up to six months in prison, though Kollar-Kotelly could opt for a more severe sentence.

Brooks admitted in court to lying to FBI agents about unreported payments to Sulaimon Brown, a minor mayoral candidate, by the Gray campaign.

Thomas W. Gore, the Gray campaign's assistant treasurer, has also pleaded guilty to his role in the scheme.

The court proceedings against a third person linked to the Gray campaign, Jeanne Clarke Harris, aren't related to the Brown matter but instead focus on straw donations and an illegal shadow campaign.

Gray has denied wrongdoing in connection with his campaign.