Gov. Martin O'Malley is expected to endorse state Sen. Brian E. Frosh for the Democratic nomination for attorney general Thursday, Frosh's campaign announced.
Del. Jon S. Cardin of Baltimore County, one of Frosh's two opponents in the June 24 primary, will counter with an appearance by U.S. Sen. Ben Cardin, who is expected to introduce other elected officials who will endorse his nephew at an Annapolis news conference Monday.
O'Malley is scheduled to appear at a Frosh rally in Greenbelt, adding his name to a long list of Democratic leaders who are backing the veteran senator over Cardin and Del. Aisha N. Braveboy of Prince George's County.
As chairman of the Judicial Proceedings Committee, Frosh has been a staunch backer of many of O'Malley's top legislative priorities — from gun control to same-sex marriage to repeal of the death penalty.
Meanwhile, Jon Cardin came under fire from the state's Republican Party over news reports that he claimed $2,688 in meal reimbursements during the session that ended in April despite missing 75 percent of his committee votes. The party called on the Office of the State Prosecutor to open an investigation.
Cardin replied with a statement insisting that all of his charges were correct and properly documented. He said the allegations were "being perpetrated by the lies" of opponents and their supporters.
Jon Cardin has led in early polls, a result some pundits have attributed to his uncle's popularity.
Frosh, a five-term senator from Montgomery County, leads the three contenders in the amount of money raised for the campaign. As of May 20 he had $864,000 on hand, compared with Cardin's $486,000 and almost $70,000 for Braveboy.