March 23, 2010, 12:01PM On the day that President Barack Obama signed health care reform legislation, Attorney General Tom Corbett, a Republican candidate for governor, was slammed by Democrats for his decision to join a lawsuit that calls the bill unconstitutional. Pennsylvania's top law enforcement officer, whose Bonusgate prosecution against state legislators and staffers resulted in mixed verdicts Monday night, said the suit "seeks to protect the citizens of Pennsylvania whose rights will be violated when the health care reform legislation ... is signed into law by President Obama.' "It is wrong for candidate Corbett to use the office of...