This week's question was, How many U.S. House incumbents lost in primaries, on average, between 2012 and 2020?

You answered: 9.
The correct answer was 7.

Between 2012 and 2020, seven U.S. House incumbents lost in primaries, on average, including an average of three Democratic incumbents and four Republican incumbents.

So far in 2022, 'nine incumbents have lost in primaries, above the preceding decade's average and second only to the 2012 cycle, when 13 incumbents lost in primaries.

Both 2012 and 2022 are post-redistricting election cycles when incumbents are more likely to run in the same districts as one another, guaranteeing that at least one must lose. So far in 2022, four incumbents lost in incumbent v. incumbent primaries: Carolyn Bourdeaux (D-Ga.), Rodney Davis (R-Ill.), David McKinley (R-W.Va.), and Marie Newman (D-Ill.).

Thanks for your response!