WHY AP HASN’T CALLED PENNSYLVANIA:A close margin and a large number of outstanding votes are what’s making the Pennsylvania contest between President Donald Trump and Joe Biden too early to call.The Democrat held a lead over Trump of more than 28,800 votes at 9:30 a.m. EST Saturday, out of more than 6.5 million ballots cast — a edge of about 0.43%. State law dictates that