Republican elected officials and members of Donald Trump’s campaign staff have insisted that his conviction on 34 felony counts in a hush-money and election interference trial would make him a stronger presidential candidate because, they said, voters would see the injustice of the trial and guilty verdict. But a fresh New York Times poll, released Wednesday afternoon, circled back to people who had previously told pollsters that they would vote for Trump — the former president and presumptive Republican presidential — and the results point to a small but substantial shift toward Democratic Pr…