At Fishtown Seafood, owner Bryan Szeliga is worried about the oysters. Szeliga, who operates three retail and wholesale locations in Philadelphia and Haddonfield, N.J., sells a range of seafood. The Trump’s administration’s on-again, off-again 25% tariffs on imports from Canada — which went into effect on Tuesday only to be suspended on some items for a month on Thursday — are giving Szeliga whiplash.Read More