So voter turn out in 2012 was around 57% or so and Obama had 50%-51% of the popular vote. So, basically 25% of America decides the election ignoring the electoral collage which reduces it to 270 people, not all of which are required to vote with their districts popular vote. This pretty much marginalizes the middle ground voter.

So yeah... what can you do.

The only way I see any change coming is if you can get around 10% of congress recalled in their given states. Unless people are upset enough to do that, you wont see any change. Even if incumbents are thrown out during normal election cycles, congress doesn't seem to get the point. As a whole their approval rating is <15% which is terrible. But their individual approval rating amongst their own constituents is much much higher... There is something wrong with that logic. How do you convince voters that they are part of the problem.