You go ahead let these polls boost your heads up. It's going to be a dramatically hard fall on election day. This man will never win these states. If Romney couldn't pull it off, how can Trump?
Trump isn't running against an incumbent. Also this country doesn't like electing back-to-back presidents of the same party. It happened in 1988 because Reagan was beloved, but before that, you have to go back to 1964 (Ford doesn't count because he was never actually elected to the office).
And Hillary is just not as good of a campaigner as Obama was.