Mississippi law prevents write-ins unfortunately.
Can he run as an Independent?
The ballot has a place for write-ins but as you state they are not counted however they are recorded as a voter and are reflected in the total, enough of them NOT voting for either cochran or childers could be enough for the rethuglians to lose, still not vote for a progressive democrat and let those who run the rethuglian party of Mississippi and the backstabbers at the rnsc know exactly what happened. Then we would be in a better position in Mississippi to take our Republican party back and after this I don’t believe there’s enough difference in reid and mConnell to make a difference.