Will Democrats get complacent if they win big in 2018?

[CookieDamage]

Just winning the House would not be enough to make Democrats complacent.

Problem is, The Deplorables will wake up just as Obama's base did and might be powerful enough to make 2020 another 2012.

Obama's base gave him two commanding and decisive victories. Trump's base got him a thin victory against the second most unpopular candidate of all time. They're not the same.

This. Also, if Obama's base really did "wake up", 2014 would have been much better for Dems and Hillary would have won. Obama won 2012 because he was popular-ish, killed Bin Laden, presided over an okayish economy, and looked better than Romney. He didn't win because Dems were shocked by Republican gains in 2010. People barely pay attention to congress and this was true in 2010 and 2014.