Apex domains cannot have CNAME records.
Question and response
Question
dig tammymclendon.com. NS
Answer
tammymclendon.com. 2 NS ns-631.awsdns-14.net.
tammymclendon.com. 2 NS ns-840.awsdns-41.net.
tammymclendon.com. 2 NS ns-1697.awsdns-20.co.uk.
tammymclendon.com. 2 NS ns-565.awsdns-06.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0