The Big Flip: A Deep Dive look at the "Supply Side" of the 2020 Presidential election in Pennsylvania and its ImplicationsEbookThe Big Flip: A Deep Dive look at the "Supply Side" of the 2020 Presidential election in Pennsylvania and its ImplicationsbyPaul S. CalemRating: 0 out of 5 stars0 ratingsSave The Big Flip: A Deep Dive look at the "Supply Side" of the 2020 Presidential election in Pennsylvania and its Implications for later