2018 Election Information

How do I best reduce which elections exist in all USA governments in 2018?

Census of Governments (COG): https://www.census.gov/govs

A census of governments is run by the US federal government every 5 years, in years ending in 2 and 7.

I will be using derivative data sources, so this may not be used, or may be used to validate completeness.

Each government is assigned a GID, the 2007 GID lookup is here.

Code for America has outlined a project attempting to work with this data, and may still be working with this.

For streaming changes, Wikipedia might be the best bet.

Biased view, but generally in my direction. Has good data.