Donald Trump and polls have had a long and unusually good relationship. Throughout the Republican primary, polls showed Trump at or near the top of the field. He dutifully cited them — and cited them — as evidence that he was #winning, and that everyone who second-guessed his unorthodox campaign style was, in a word, dumb.
It was Trump's ultimate defense. Every time another candidate or a party leader raised questions about his fitness for office or his conservative credentials, he could always point to polling that showed the Republican primary electorate siding with him. It served as his uber-example of how out of touch the party establishment was with its base; every time they predicted something he said or did would doom his campaign, his poll numbers went up. (See Muslim ban, build wall and make Mexico pay for it, etc.)
Of late, though, the Trump-polls friendship has fallen on hard times. Very hard times.
He's down 17 points to Hillary Clinton in New Hampshire. Down 11 in Pennsylvania. Down six in Michigan. And national polling is no better. A Fox News survey out Wednesday night had Trump down 10 to Clinton. That's consistent with the post-conventions landscape in lots of polls released over the past five days.