Oooh.
One poll after another shows Trump at 40-43% and Clinton at 46-49%. One poll shows a high side aberration in Trump's number and the media goes crazy.
Trump is still in his 39-44% rut. Wake me up when folks realise that single polls generate occasional anomalies.
If a trend emerges, fine. But he's been at 39-44% for a year. And he's still there. She's been at 44-49% for a year. And she's still there.
Her numbers actually are hardly declining. And if she maintains them, she very likely wins.
http://elections.huffingtonpost.com/pollster/2016-general-election-trump-vs-clinton