President Biden referred to the presidential helicopter Marine One as “Air Force Helicopter One” Monday — while claiming that Ronald Reagan sent the chopper to take him from Delaware to the DC-area Walter Reed military hospital when Biden had a brain aneurysm in the 1980s. The 81-year-old’s anecdote is, like other biographical details he’s shared in public remarks, not supported by his own autobiography — or by Reagan’s daily presidential diary. “President Reagan was nice enough to send Air Force Helicopter One to take me down, but it couldn’t fly,” Biden told firefighters during a day-trip to Philadelphia, using an...