Democracy’s Data: Analytics and Insights
into American Elections
[84-355] | Fall 2026
Prof. Jonathan Cervas
Updated: August 20, 2026
Professor Jonathan Cervas
Office: Posner Hall 374
Email: cervas@cmu.edu
Location: PH A21A
Time: Tuesday & Thursday 11:00a-12:20p Eastern
Office Hours: Wed 10:30a-12:30p & 1:30p-3:30p, and by appointment
(arrange via email)
CMU Academic
Calendar
The most up-to-date version of this syllabus
can be found here: https://jcervas.github.io/teaching/2026-2027/class-cmu-2026-84-355/readme.html
Prerequisites: 36-200 Reasoning with Data
Course Relevance: DC: Perspectives on Justice and
Injustice

25 meetings, Tuesdays and Thursdays. One of them,
Tue, Nov 24, meets on Zoom rather than in the room. The
tinted days are closures — fall break, Democracy Day, Thanksgiving, and
the Constitution Day Symposium.
How American elections actually work, taught through the data they
produce. Tuesdays we read; Thursdays we put real election data on the
screen and work out what it shows — through the 2026 midterms, live.
Assessment
The course grade will be a weighted average of the following
components:
| Participation & Attendance |
15% |
| Discussion Board |
20% |
| Weekly Data Contributions |
10% |
| Three Tests (10% each) |
30% |
| Data Journalism Project |
25% |
What each one is:
- Participation & Attendance — Being here,
prepared, and in the conversation — on both days.
- Discussion Board — By Friday night each week, one
post about any of the data we talked about: the lab, a classmate’s data
slide, a figure in the reading. Something that surprised you, something
we missed, something you do not understand, or an answer to somebody
else’s question. A few sentences to a paragraph —
enough to show you engaged with what we did. One post is full
credit.
- Weekly Data Contributions — Find data bearing on
the question Tuesday ended with, name the source, and post it as a slide
before Thursday. Each week two slides are drawn at random and worked
through in class, and nobody presents the data they found themselves.
If your name is drawn and you are absent or have no slide, it
costs 25% of your attendance grade for the semester — expect
your own data to come up once or twice all term. At the end of term you
hand in a newsletter: every piece of data you found,
each with a short write-up. Build it as you go — it is
a paragraph a week, and an evening’s work if you leave it all to
December.
- Three Tests — In class, on paper, and on
the textbook only. Test 1 on Tue, Oct 20
(Sides et al., Chapters 1–5), Test 2 on Tue, Nov 10
(Chapters 6–9), Test 3 on Thu, Dec 3 (Chapters 10–13).
We read the book straight through in its own order, so each test is a
block of consecutive chapters: each covers the chapters read since the
last one, none is cumulative, and every chapter appears
on exactly one test. There is no final exam.
- Data Journalism Project — A data-driven news story
about a trend or issue in electoral processes. Runs in three parts —
draft, peer review, final — and most of the marks are on the
first two. It is the only substantial piece of writing this
term.
Due Dates
| Data slide |
before each Thursday |
| Discussion board post |
Friday, 11:59 p.m., each week |
| Data Session 4 board post (no Thursday session) |
Tue, Sep 22 — no session to follow that week, so
you get the weekend |
| Week 14 board post (Thanksgiving) |
Mon, Nov 30 — Tuesday is the lab, and there is no
Thursday |
| Data journalism: pitch |
Thu, Oct 8, in class |
| Test 1 — Ch. 1–5 |
Tue, Oct 20, in class |
| Test 2 — Ch. 6–9 |
Tue, Nov 10, in class |
| Data journalism: draft |
Thu, Nov 19 — the last session before the
break |
| Data journalism: peer reviews (two) |
Tue, Dec 1 |
| Test 3 — Ch. 10–13 |
Thu, Dec 3, in class |
| Data newsletter |
Fri, Dec 4 — the last day of classes |
| Data journalism: final |
Fri, Dec 11 — after the last session |
There is no final exam.
The Essentials
- Required text: Sides, Shaw, Grossmann &
Lipsitz, Campaigns and Elections (W. W. Norton). Everything
else is posted on Canvas — there is nothing else to buy.
- No coding, and nothing to install. Every lab
arrives as a prepared data brief with the results already in front of
you; what you do is work out what they show.
- Tests are on the textbook only — in class, on
paper.
- First day, in class: the Cervas Election Study —
link in Canvas, under Assignments; screenshot the
confirmation screen for credit.