Source or suspicion?
There are examples such as, “Dentist Anna Mackowiak Pulls Out Her Ex-Boyfriend’s Teeth” and “Is the Changing Role of Women in Our Society Behind the Rise in Autism in the Past 30 Years?” among others. My main reason fir doubting Mr. Biden said this is, it’s not found anywhere else (except quotes from the DM) and The Daily Mail is a tabloid like the Enquirer or Weekly World News.