Proposal: make it illegal to solicit anyone's voting preference and record it prior to them casting a ballot. Publicly announcing/endorsing of your own volition is fine but nobody can ask you and then write it down. Maybe an exception for anyone affiliated with an active campaign, but they cannot disclose results prior to election day.
We'd be better off without any of the polling. It doesn't help anything, it's used dishonestly, and it interferes with a fair and free election.