Apex domains cannot have CNAME records.
Question and response
Question
dig andymitchellforassembly.com. NS
Answer
andymitchellforassembly.com. 5 NS ns2.andymitchellforassembly.com.
andymitchellforassembly.com. 5 NS ns1.andymitchellforassembly.com.
Authority
The response has no authority records.
Additional
ns1.andymitchellforassembly.com. 5 A 199.188.236.208
ns2.andymitchellforassembly.com. 5 A 216.144.240.189
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0