PHILADELPHIA — As Attorney General Josh Shapiro thanked a group of union workers gathered to launch a day of door knocking around Philadelphia, he gestured to Lt. Gov. John Fetterman waiting at the foot of the stage. “I want you to just turn your eyes over here,” Shapiro said. “We’ve got the 51st [Democratic] senator in the house! Are we gonna send John Fetterman to Washington, D.C., to represent the union way of life? “Hell, yeah!” the crowd replied. When Fetterman spoke, he returned the Democratic love. “Josh Shapiro’s got Pennsylvania,” he said. “Send me to Washington, D.C.” The Democratic …