I'd like riots to happen in Iowa.

Scratch that.

I'd like riots to happen everywhere.  I want there to be so many riots that the national guard can't put them all down.

There's going to be a tipping point.  If nothing changes after this election, which I don't suppose it will, not on enough of a scale because the democrats and republicans aren't disparate enough, this point will come.

The economy is going to crumble in the next year.  Oil is going to get more expensive; the baseline for gasoline is going to go from the current $3 a gallon to a minimum of $4 a gallon.  People are going to be quiet about their discontent as they get more and more pissed off.

At some point soon, there is going to be a very hot summer during a recession and an oil crisis.  People will not be able to afford to run their air conditioners, or even their fans at any high speed, as electricity gets more expensive.  In such conditions, it's slightly cooler outside, so people will leave their houses in search of relief.

Crowds of people, mildly upset at their lowered standard of living, will gather outside trying to catch a breeze.  They'll start to congregate and talk to eachother about their lives.  In the thousands of places in which such spontaneous meetings happen, one in a hundred is likely to contain someone who feels that senseless violence will even out the game; that rioting against the government that got us into this mess is a worthwhile solution.

In the group of people that I find myself a part of, I will be this person.

In a smaller number of groups, this incitement would be well met, sparking a heat- and anger-fuelled riot.  The police would then come, as would the media, along with any given person 
on the street with a video-capturing device.  The next day, the idea of rioting as a solution 
would spread.  In a perfect scenario, the country would fall apart in a few months.