The broadside by O’Malley, the chairman of the Democratic Governors Association, followed Romney’s release of a new video critical of President Obama’s record on jobs.

O’Malley, who has sought to toughen up the DGA since becoming chairman in December, said Romney’s support of policies such as the Republican debt-reduction plan, “Cut, Cap, and Balance,” showed that Romney “would either drive our nation needlessly into default or force massive public sector layoffs. Under either scenario, Mitt Romney would kill the jobs recovery and bankrupt states like Maryland.”

There was mixed news about jobs and the economy in Maryland Friday. A new report showed the state ended its fiscal year in June with tax revenue significantly ahead of forecasts, but new unemployment numbers showed that Maryland also lost jobs again last month.