Conor Lamb says John Fetterman’s afraid to debate, calling shotgun incident ‘a huge problem’PHILADELPHIA — U.S. Rep. Conor Lamb issued a direct attack Thursday against Lt. Gov. John Fetterman, signaling a clear shift in Pennsylvania’s Democratic primary for Senate as it enters the final stretch. Lamb accused Fetterman, the front-runner in the race, of dodging scrutiny on a controversial incident from his past that he said could “single-handedly” cost Democrats a Senate seat. It’s the first time Fetterman’s been directly attacked, marking what could be a pivot in the tone and intensity of the r…