Can a third party candidate win?

[Drakus79]

I've been voting Libertarian since I was old enough to vote and they always lose.  But this year Gary Johnson is polling higher than any libertarian has in a presidential election.  Trump and Clinton are polling lower than ever.  I predicted that third parties would draw a significant portion of the vote this year, but it was my guess that that Clinton would get the highest percentage of the vote with Trump coming in second, Johnson third and Jill Stein fourth.  Now, after the whole Clinton email scandal, I'm starting to have hope that maybe Johnson could actually pull off a victory, if he actually makes it to the debates.  Yes, I know Clinton got away without being indicted, but the FBI director's statements were so damning that even her supporters are starting to turn against her.  And Trump?  I just don't see him gaining much more support after all the dumb things he's said.  Plus there's still plenty of time for him to put his foot in his mouth several more times.  Maybe I'm getting my hopes up to high, but I think Gary Johnson actually has a shot this year.