This time, there is the ‘Trump factor’. The Media and opposition [Dems and GOPestablishment] have been trying since June of 2015 to figure out what it is. Massive rallies compared to Clinton who can't even fill a small-school gymnasium.
Does that mean anything? Maybe yes. Maybe no. In 2012, Obama seemed to be getting about 1/2 of less of the massive support he got in 2008. He couldn't even fill a college gymnasium. Yet, when the votes were counted, he got enough to leave Romney in the Electoral count dust.
If the pollsters are correct, 2016 is shaping up to be a squeaker reminiscent of 2000. If the pollsters are wrong, it could be the biggest blowout since Reagan-Carter.
[I do hope for the latter. Nothing would give me more pleasure than to hear Wolf Blitzer, shades of the 2010 mid-term, say ‘the Democrat is taking a shellacking.’]
The 2012 election was Romney’s to lose and he did an excellent job of losing it.