Mrs. Clinton generally leads Mr. Trump by less in online surveys. On balance, though, Mr. Trump has about 2.5 more points in live-interview polls. He’s actually earning a smaller share of the vote in online surveys than in the live-interview polls — the exact opposite of what one might expect if he were being hurt by social desirability bias in live-interview polls.AND: Here's a NYT article — "Donald Trump Borrows From Bernie Sanders’s Playbook to Woo Democrats" — that had me leaping ahead to the notion of Sanders one day endorsing Trump. Oh, yes, it hit me at this point:
So what’s going on? The main difference between the online and live-interview polls is there are vastly more undecided voters in the online surveys. In the live-interview surveys, there are correspondingly more supporters of Mrs. Clinton and Mr. Trump, with Mrs. Clinton apparently gaining slightly more ground....
Mr. Trump recently offered a taste of his coming line of attack on the campaign trail in Oregon, where he praised Mr. Sanders for highlighting Mrs. Clinton’s ties to the country’s largest financial institutions. “She’s totally controlled by Wall Street,” Mr. Trump said, echoing a Sanders rallying cry.
Roger J. Stone Jr., a longtime adviser to Mr. Trump, said he expected the presumptive Republican nominee to grow aggressive on the banks. “Who’s been tougher on bankers than Donald Trump?” asked Mr. Stone, suggesting Mr. Trump could appeal to some of Mr. Sanders’s supporters. “He’s taken them to the cleaners. I think he has a healthy skepticism and deep knowledge of bankers and how they operate. He’s going to be tough on Wall Street.” Mr. Trump has said that “the hedge fund guys are getting away with murder.”