Is political polarization worse than it's been in the past?

Political polarization is a complex phenomenon, and the answer depends on what dimension you're measuring and what time period you're comparing to. Let me search for some current data to give you a well-grounded answer.# Yes, by most measures — but with important nuance

Political polarization in the U.S. today is genuinely at historic highs by nearly every metric political scientists track, though it depends heavily on which historical period and which type of polarization you're comparing.

Compared to recent decades: Clearly worse

The data here is unambiguous. It's undeniable that the United States has become more politically polarized than it was a decade ago — as well as a decade before that. Several concrete measures illustrate this:

Compared to the Civil War era: More contested

This is where experts disagree sharply:

The "yes, even worse" camp: Social scientist Robert Putnam argues we're even more polarized now — talking about the data — even more polarized now than during the Civil War. He frames the current moment as echoing the first Gilded Age, when that was the first Gilded Age — a period that was very polarized and very unequal, before 70 years of growing connection and equality reduced polarization — a cycle he suggests could repeat.

The "no, not close" camp: Civil War historians push back hard on this comparison. One historian states plainly that current divisions pale in comparison to those of the mid-19th century. The scale argument is stark: four years of civil war produced at least 620,000 military deaths – the equivalent of approximately 6.5 million dead in the United States of 2020. Even some data-driven political scientists urge caution, noting that viewed within the context of data from the last two centuries, today's levels of polarization are not such an alarming anomaly compared to those occurring during the time of slavery.

The key distinction: elites vs. voters

A crucial nuance from political science: political scientists Morris Fiorina and Matthew Levendusky find that the battles being waged between liberals and conservatives in Washington are not being waged with the same intensity by rank-and-file voters — resulting in a disconnect between the American people and those who purport to represent them. In other words, politicians and highly engaged activists have polarized faster and further than the average citizen.

Bottom line

If you're measuring congressional gridlock, elite rhetoric, partisan animosity, or ideological sorting, today's polarization is the worst it's been since at least Reconstruction, and by some measures (affective polarization) worse than any point in the modern survey era. If you're comparing to the Civil War in terms of actual violence, existential stakes, and willingness to kill fellow citizens, the comparison breaks down — the scale of that conflict dwarfs anything in contemporary politics, even accounting for January 6th and similar events.

So: worse than any time in living memory for most Americans, but not unprecedented in the full sweep of American history — it depends on whether you're measuring vibes and vote patterns, or actual bloodshed.