 CBS News Director of Elections and Surveys Anthony Salvato on CBS polling done shortly before the decision on the 39-year-old U.S. Senator from Ohio. We knew that J.D. Vance was in the conversation, so we asked about him coming into the convention. For the folks who knew him, by four to one, they said that they would be enthusiastic, they'd be satisfied. But the other part of this is when you break that down within Republicans by those who identify as MAGA, you get an even higher number who, in advance, said that they would be enthusiastic or satisfied with J.D. Vance.