PHILADELPHIA — Philadelphia Mayor Cherelle L. Parker met with President Joe Biden Monday, riding with him in the presidential motorcade and accompanying him to a local food bank, just two weeks after she took office. According to Parker’s administration, the mayor spoke with the president about how the federal government can assist the city in tackling public safety issues, affordable housing, and the opioid crisis afflicting the city’s Kensington neighborhood. Their brief meeting was the second time the two have spoken this month, and underscored the significance Parker could have in Biden’s …