Candidate filings to seats up for election ratios (2018 and 2020)

Each dot represents one state's congressional candidate filing deadline. Dots are scaled based on the ratio of candidates to seats up for election.
The orange line shows the overall trend in filing ratios for 2018; the teal line shows the same trend for filings in 2020.
The vertical dotted black line indicates March 13 as a reference for the COVID-19 tipping point in 2020.
Click on a dot to learn more information.