Happy 4th. Thinking about the us gov tonight, and how it would be nice to have a map that just gives you contact info for any congressional district, including senators, with your mouse. Bostock already did most of the hard work, including helpful information about how to update this information with each change of congress, which happens every 2 years.
A few things are missing, of course, first is a contact database for congress, which is at least partially attainable on the Elected Officials Site - it's not clear if there's a downloadable, low-entropy representation but it looks like the data is pretty regular, and not hard to scrape, and it's not even too large to scrape by hand every 2 years!
Another thing that is missing is zoomability: there is an enormous range of sizes in US congressional districts, where states like Montana have just one for the whole state, and more populated states can have upwards of 50,