*Margolis, Matt; Noonan, Mark (2018). [https://www.amazon.com/Worst-President-History-Legacy-Barack/dp/1682618137/ ''The Worst President in History: The Legacy of Barack Obama'']. New York: Bombardier Books. ISBN: 978-1682618134.
+
*Margolis, Matt; Noonan, Mark (2018). [https://www.amazon.com/Worst-President-History-Legacy-Barack/dp/1682618137/ ''The Worst President in History: The Legacy of Barack Obama'']. New York: Bombardier Books. ISBN 978-1682618134.