Photo: Alex Wong/Getty Images Joe Biden ’s apparent physical and mental decline, his fateful decision to run for reelection, and the Democratic Party ’s unwillingness to question that decision until it was too late are all back in the news in a big way, thanks to a new book due out next week from Jake Tapper and Alex Thompson. In Original Sin: President Biden’s Decline, Its Cover-Up, and His Disastrous Choice to Run Again , Tapper and Thompson report on Biden’s downfall both before and after