In late 2011, Occupy Wall Street protests spread like wildfire in cities across the country, forcing a focus on America's gaping income gaps.
The issue took center stage for some time, grabbing headlines and, briefly at least, the attention of elected officials. But when the protest camps were dismantled and the media crews packed up, the issue got largely sidelined.
In the end not much changed, and today the income divide remains as wide as it was the day the protests began. In fact, a recent Pew Research report found that the middle class is losing ground: "after more than four decades of serving as the nation's economic majority, the U.S. middle class is now matched in size by those in the economic tiers above and below it."
This growing inequality between society's rich and poor is an issue that some candidates have already begun to address in the 2016 presidential campaign.
Cartoon journalist Andy Warner illustrates how deep America's economic divide is.