He's gaining in several battleground states. Fl , Co , NH , NC, Michigan.
I don't know where your getting your info from, but gaining is not the same as winning or even ahead.
Florida is the key for Trump if he even wants a chance at winning..
And your not factoring in the early voting - which is what gave Obama his bigger than expected win over Romney.
And the early voting is not looking so good for Trump
On the call, Gabriel Sanchez, a principal at Latino Decisions, pointed to early voting trends that s
how Latino early voting is up 100 percent in Florida, 60 percent in North Carolina and up 25 percent in Colorado and Nevada.
The numbers are a good sign for Hillary Clinton who has seen the race tighten in recent days. Latino Decisions is estimating– using their own turnout predictor– that Clinton is on track to capture 79 percent of the Latino vote. Trump, on the other hand, is expected to garner only 18 percent (almost 10 points down from Romney's 27 percent performance.)
http://talkingpointsmemo.com/dc/latino-early-vot-surges-from-florida-to-nevada
Right now I don't see any poll other than the LA Times that gives Trump a lead nationally, or in most of the battleground states.