Exactly what it is (at least as exact as any of these ratings are). That is approval for the man, and as Woosh says not a vote. Probably most of those that approve will vote for him; I wonder how many will vote for him as candidate for the party even though they disapprove.I think that is the current Trump approval rating. Not any vote, as such.
https://projects.fivethirtyeight.com/trump-approval-ratings/
He's worse than an overpowered scooter. Is it unkind to suggest we club together to buy him one (and hope he kills himself)?