PHILADELPHIA — When John Fetterman came to Philadelphia last weekend, he tried to answer one of the central attacks coming from Republicans: that he’s soft on crime. He did it in two very different ways. Fetterman, the Pennsylvania lieutenant governor and Democratic Senate nominee, leaned into his advocacy for pardons and commutations for long-serving prisoners — casting a GOP criticism as a point of pride. But when it came to his past statements supporting the broad decriminalization of all drugs, he changed course. The contrasting responses show how one Democrat, in one of the country’s most…