Henson was convicted in May 2012 of conspiracy to violate election laws by not including an authority line on a “robocall,” made as part of Republican former Gov. Robert L. Ehrlich Jr.’s 2010 campaign to return to office. Ehrlich lost the election to the incumbent, Democratic Gov. Martin O'Malley.
The call targeted Democratic voters in Baltimore and Prince George's County and said they could “relax,” suggesting that O'Malley had won. In fact, no one knew the results because the polls were still open.
Henson served a month in jail before being released on probation. Attorney General Douglas F. Gansler brought a civil case against him, and a federal judge ordered Henson to pay $1 million in fines.
Henson has maintained that the judge’s order applies to “work” as a political consultant, not his own campaign.