A Democratic political action committee is starting an expensive television blitz targeting Robert McDonnell, the Republicans’ presumptive Virginia gubernatorial nominee, over his party’s rejection of $125 million in federal stimulus funds for laid-off workers.

Common Sense Virginia, a group wholly funded by the Democratic Governors Association, is paying $550,000 to broadcast ads in Northern Virginia, Richmond, Roanoke and Norfolk attacking the former state attorney general. Most of that money will be spent to buy pricey air time in suburban Washington.