Giuliani put out a video of Dr. Alan A Mazurek evaluating Biden. Mazurek believes Biden has dementia.

Dr. Alan A Mazurek is a Neurology Specialist in Jericho, New York. He graduated with honors from Mount Sinai School Of Medicine Of City University Of New York in 1980. Having more than 40 years of diverse experiences, especially in neurology. Board certified in Neurology, American Board of Psychiatry and Neurology.  Resident physician Mount Sinai Hospital.