Interactive Projects — Strength In Numbers

Interactive data visualization tools for understanding polling, elections, and public opinion. By G. Elliott Morris, political data journalist and author of Strength In Numbers: How Polls Work and Why We Need Them (W.W. Norton, 2022).

Projects

Trump Approval Explorer — Donald Trump's approval rating by PUMA and demographic group, using MRP estimates from the monthly Strength In Numbers/Verasight poll.
Midterm Seat Loss Calculator — Predicts U.S. House seat change based on presidential approval, using historical midterm data since 1946.
2026 Senate Simulator — Build your own forecast of the 2026 Senate elections using a fundamentals-based model.
2028 Electoral College Simulator — Monte Carlo simulator of the 2028 presidential election with correlated state-level errors.
Polling Uncertainty, Explained — Why actual polling error is roughly 2x the stated margin of error, built on 9,000+ historical polls since 1980.
Polling Simulator: How Do Polls Work? — Hands-on educational simulation of survey sampling, non-response bias, and iterative proportional fitting.

About

G. Elliott Morris is a political data journalist. He previously served as Director of Data Analytics at ABC News / FiveThirtyEight. He publishes the Strength In Numbers newsletter (65,000+ subscribers) on Substack and wrote Strength In Numbers: How Polls Work and Why We Need Them.